Lenses designed to be worn on the front surface of the eyeball. (UMDNS, 1999)
Soft, supple contact lenses made of plastic polymers which interact readily with water molecules. Many types are available, including continuous and extended-wear versions, which are gas-permeable and easily sterilized.
Sterile solutions used to clean and disinfect contact lenses.
Inflammation of the cornea.
A broad family of synthetic organosiloxane polymers containing a repeating silicon-oxygen backbone with organic side groups attached via carbon-silicon bonds. Depending on their structure, they are classified as liquids, gels, and elastomers. (From Merck Index, 12th ed)
Infection of the cornea by an ameboid protozoan which may cause corneal ulceration leading to blindness.
Pieces of glass or other transparent materials used for magnification or increased visual acuity.
A genus of free-living soil amoebae that produces no flagellate stage. Its organisms are pathogens for several infections in humans and have been found in the eye, bone, brain, and respiratory tract.
The transparent anterior portion of the fibrous coat of the eye consisting of five layers: stratified squamous CORNEAL EPITHELIUM; BOWMAN MEMBRANE; CORNEAL STROMA; DESCEMET MEMBRANE; and mesenchymal CORNEAL ENDOTHELIUM. It serves as the first refracting medium of the eye. It is structurally continuous with the SCLERA, avascular, receiving its nourishment by permeation through spaces between the lamellae, and is innervated by the ophthalmic division of the TRIGEMINAL NERVE via the ciliary nerves and those of the surrounding conjunctiva which together form plexuses. (Cline et al., Dictionary of Visual Science, 4th ed)
The fluid secreted by the lacrimal glands. This fluid moistens the CONJUNCTIVA and CORNEA.
Loss of epithelial tissue from the surface of the cornea due to progressive erosion and necrosis of the tissue; usually caused by bacterial, fungal, or viral infection.
The fitting and adjusting of artificial parts of the body. (From Stedman's, 26th ed)
Apparatus, devices, or supplies intended for one-time or temporary use.
A republic in western Africa, south of MALI and BURKINA FASO, bordered by GHANA on the east. Its administrative capital is Abidjan and Yamoussoukro has been the official capital since 1983. The country was formerly called Ivory Coast.
Artificial implanted lenses.
Absence of crystalline lens totally or partially from field of vision, from any cause except after cataract extraction. Aphakia is mainly congenital or as result of LENS DISLOCATION AND SUBLUXATION.
An excessive amount of fluid in the cornea due to damage of the epithelium or endothelium causing decreased visual acuity.
The measurement of curvature and shape of the anterior surface of the cornea using techniques such as keratometry, keratoscopy, photokeratoscopy, profile photography, computer-assisted image processing and videokeratography. This measurement is often applied in the fitting of contact lenses and in diagnosing corneal diseases or corneal changes including keratoconus, which occur after keratotomy and keratoplasty.
Infections in the inner or external eye caused by microorganisms belonging to several families of bacteria. Some of the more common genera found are Haemophilus, Neisseria, Staphylococcus, Streptococcus, and Chlamydia.
Diseases of the cornea.
A network of cross-linked hydrophilic macromolecules used in biomedical applications.
Partial or complete opacity on or in the lens or capsule of one or both eyes, impairing vision or causing blindness. The many kinds of cataract are classified by their morphology (size, shape, location) or etiology (cause and time of occurrence). (Dorland, 27th ed)
Hydrophilic contact lenses worn for an extended period or permanently.
The portion of the crystalline lens surrounding the nucleus and bound anteriorly by the epithelium and posteriorly by the capsule. It contains lens fibers and amorphous, intercellular substance.
The thin noncellular outer covering of the CRYSTALLINE LENS composed mainly of COLLAGEN TYPE IV and GLYCOSAMINOGLYCANS. It is secreted by the embryonic anterior and posterior epithelium. The embryonic posterior epithelium later disappears.
A pair of ophthalmic lenses in a frame or mounting which is supported by the nose and ears. The purpose is to aid or improve vision. It does not include goggles or nonprescription sun glasses for which EYE PROTECTIVE DEVICES is available.
The core of the crystalline lens, surrounded by the cortex.
Refraction of LIGHT effected by the media of the EYE.
Rendering pathogens harmless through the use of heat, antiseptics, antibacterial agents, etc.
Insertion of an artificial lens to replace the natural CRYSTALLINE LENS after CATARACT EXTRACTION or to supplement the natural lens which is left in place.
Water swollen, rigid, 3-dimensional network of cross-linked, hydrophilic macromolecules, 20-95% water. They are used in paints, printing inks, foodstuffs, pharmaceuticals, and cosmetics. (Grant & Hackh's Chemical Dictionary, 5th ed)
OPPORTUNISTIC INFECTIONS with the soil fungus FUSARIUM. Typically the infection is limited to the nail plate (ONYCHOMYCOSIS). The infection can however become systemic especially in an IMMUNOCOMPROMISED HOST (e.g., NEUTROPENIA) and results in cutaneous and subcutaneous lesions, fever, KERATITIS, and pulmonary infections.
A refractive error in which rays of light entering the EYE parallel to the optic axis are brought to a focus in front of the RETINA when accommodation (ACCOMMODATION, OCULAR) is relaxed. This results from an overly curved CORNEA or from the eyeball being too long from front to back. It is also called nearsightedness.
Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast.
The presence of an infectious agent on instruments, prostheses, or other inanimate articles.
Developmental abnormalities in any portion of the ATRIAL SEPTUM resulting in abnormal communications between the two upper chambers of the heart. Classification of atrial septal defects is based on location of the communication and types of incomplete fusion of atrial septa with the ENDOCARDIAL CUSHIONS in the fetal heart. They include ostium primum, ostium secundum, sinus venosus, and coronary sinus defects.
Measurement of light given off by fluorescein in order to assess the integrity of various ocular barriers. The method is used to investigate the blood-aqueous barrier, blood-retinal barrier, aqueous flow measurements, corneal endothelial permeability, and tear flow dynamics.
A biocompatible, hydrophilic, inert gel that is permeable to tissue fluids. It is used as an embedding medium for microscopy, as a coating for implants and prostheses, for contact lenses, as microspheres in adsorption research, etc.
Unequal curvature of the refractive surfaces of the eye. Thus a point source of light cannot be brought to a point focus on the retina but is spread over a more or less diffuse area. This results from the radius of curvature in one plane being longer or shorter than the radius at right angles to it. (Dorland, 27th ed)
Infection by a variety of fungi, usually through four possible mechanisms: superficial infection producing conjunctivitis, keratitis, or lacrimal obstruction; extension of infection from neighboring structures - skin, paranasal sinuses, nasopharynx; direct introduction during surgery or accidental penetrating trauma; or via the blood or lymphatic routes in patients with underlying mycoses.
A heterogeneous family of water-soluble structural proteins found in cells of the vertebrate lens. The presence of these proteins accounts for the transparency of the lens. The family is composed of four major groups, alpha, beta, gamma, and delta, and several minor groups, which are classed on the basis of size, charge, immunological properties, and vertebrate source. Alpha, beta, and delta crystallins occur in avian and reptilian lenses, while alpha, beta, and gamma crystallins occur in all other lenses.
The methyl esters of methacrylic acid that polymerize easily and are used as tissue cements, dental materials, and absorbent for biological substances.
Stratified squamous epithelium that covers the outer surface of the CORNEA. It is smooth and contains many free nerve endings.
Each of the upper and lower folds of SKIN which cover the EYE when closed.
A malformation of the nervous system caused by failure of the anterior neuropore to close. Infants are born with intact spinal cords, cerebellums, and brainstems, but lack formation of neural structures above this level. The skull is only partially formed but the eyes are usually normal. This condition may be associated with folate deficiency. Affected infants are only capable of primitive (brain stem) reflexes and usually do not survive for more than two weeks. (From Menkes, Textbook of Child Neurology, 5th ed, p247)
Deviations from the average or standard indices of refraction of the eye through its dioptric or refractive apparatus.
Substances used on inanimate objects that destroy harmful microorganisms or inhibit their activity. Disinfectants are classed as complete, destroying SPORES as well as vegetative forms of microorganisms, or incomplete, destroying only vegetative forms of the organisms. They are distinguished from ANTISEPTICS, which are local anti-infective agents used on humans and other animals. (From Hawley's Condensed Chemical Dictionary, 11th ed)
Infection, moderate to severe, caused by bacteria, fungi, or viruses, which occurs either on the external surface of the eye or intraocularly with probable inflammation, visual impairment, or blindness.
The lamellated connective tissue constituting the thickest layer of the cornea between the Bowman and Descemet membranes.
The organ of sight constituting a pair of globular organs made up of a three-layered roughly spherical structure specialized for receiving and responding to light.
The science dealing with the establishment and maintenance of health in the individual and the group. It includes the conditions and practices conducive to health. (Webster, 3d ed)
Polymers of silicone that are formed by crosslinking and treatment with amorphous silica to increase strength. They have properties similar to vulcanized natural rubber, in that they stretch under tension, retract rapidly, and fully recover to their original dimensions upon release. They are used in the encapsulation of surgical membranes and implants.
Sterile solutions that are intended for instillation into the eye. It does not include solutions for cleaning eyeglasses or CONTACT LENS SOLUTIONS.
Corneal and conjunctival dryness due to deficient tear production, predominantly in menopausal and post-menopausal women. Filamentary keratitis or erosion of the conjunctival and corneal epithelium may be caused by these disorders. Sensation of the presence of a foreign body in the eye and burning of the eyes may occur.
Diseases affecting the eye.
A refractive error in which rays of light entering the eye parallel to the optic axis are brought to a focus behind the retina, as a result of the eyeball being too short from front to back. It is also called farsightedness because the near point is more distant than it is in emmetropia with an equal amplitude of accommodation. (Dorland, 27th ed)
Single layer of large flattened cells covering the surface of the cornea.
Identification of those persons (or animals) who have had such an association with an infected person, animal, or contaminated environment as to have had the opportunity to acquire the infection. Contact tracing is a generally accepted method for the control of sexually transmitted diseases.
Measurement of distances or movements by means of the phenomena caused by the interference of two rays of light (optical interferometry) or of sound (acoustic interferometry).
The mucous membrane that covers the posterior surface of the eyelids and the anterior pericorneal surface of the eyeball.
The removal of a cataractous CRYSTALLINE LENS from the eye.
The dioptric adjustment of the EYE (to attain maximal sharpness of retinal imagery for an object of regard) referring to the ability, to the mechanism, or to the process. Ocular accommodation is the effecting of refractive changes by changes in the shape of the CRYSTALLINE LENS. Loosely, it refers to ocular adjustments for VISION, OCULAR at various distances. (Cline et al., Dictionary of Visual Science, 4th ed)
Partial or total replacement of the CORNEA from one human or animal to another.
Infection with any of various amebae. It is an asymptomatic carrier state in most individuals, but diseases ranging from chronic, mild diarrhea to fulminant dysentery may occur.
A type of acute or chronic skin reaction in which sensitivity is manifested by reactivity to materials or substances coming in contact with the skin. It may involve allergic or non-allergic mechanisms.
Measurement of the blood pressure of the retinal vessels. It is used also for the determination of the near point of convergence (CONVERGENCE, OCULAR). (From Cline, et al., Dictionary of Visual Science, 4th ed)
Methods of creating machines and devices.
Infections with bacteria of the genus SERRATIA.
A specialized field of physics and engineering involved in studying the behavior and properties of light and the technology of analyzing, generating, transmitting, and manipulating ELECTROMAGNETIC RADIATION in the visible, infrared, and ultraviolet range.
Presence of an intraocular lens after cataract extraction.
Partial or total replacement of all layers of a central portion of the cornea.
A contact dermatitis due to allergic sensitization to various substances. These substances subsequently produce inflammatory reactions in the skin of those who have acquired hypersensitivity to them as a result of prior exposure.
A surgical specialty concerned with the structure and function of the eye and the medical and surgical treatment of its defects and diseases.
Acrylic acids or acrylates which are substituted in the C-2 position with a methyl group.
Gas lasers with excited dimers (i.e., excimers) as the active medium. The most commonly used are rare gas monohalides (e.g., argon fluoride, xenon chloride). Their principal emission wavelengths are in the ultraviolet range and depend on the monohalide used (e.g., 193 nm for ArF, 308 nm for Xe Cl). These lasers are operated in pulsed and Q-switched modes and used in photoablative decomposition involving actual removal of tissue. (UMDNS, 2005)
A species of gram-negative, aerobic, rod-shaped bacteria commonly isolated from clinical specimens (wound, burn, and urinary tract infections). It is also found widely distributed in soil and water. P. aeruginosa is a major agent of nosocomial infection.
A species of free-living soil amoebae in the family Acanthamoebidae. It can cause ENCEPHALITIS and KERATITIS in humans.
Agents which are destructive to amebae, especially the parasitic species causing AMEBIASIS in man and animal.
A phthalic indicator dye that appears yellow-green in normal tear film and bright green in a more alkaline medium such as the aqueous humor.
A mitosporic Hypocreales fungal genus, various species of which are important parasitic pathogens of plants and a variety of vertebrates. Teleomorphs include GIBBERELLA.
The sebaceous glands situated on the inner surface of the eyelids between the tarsal plates and CONJUNCTIVA.
Damage or trauma inflicted to the eye by external means. The concept includes both surface injuries and intraocular injuries.
Elements of limited time intervals, contributing to particular results or situations.
Infections with bacteria of the genus PSEUDOMONAS.
Loss of CORNEAL ENDOTHELIUM usually following intraocular surgery (e.g., cataract surgery) or due to FUCHS' ENDOTHELIAL DYSTROPHY; ANGLE-CLOSURE GLAUCOMA; IRITIS; or aging.
Methods and procedures for the diagnosis of diseases of the eye or of vision disorders.
Brief closing of the eyelids by involuntary normal periodic closing, as a protective measure, or by voluntary action.
A kingdom of eukaryotic, heterotrophic organisms that live parasitically as saprobes, including MUSHROOMS; YEASTS; smuts, molds, etc. They reproduce either sexually or asexually, and have life cycles that range from simple to complex. Filamentous fungi, commonly known as molds, refer to those that grow as multicellular colonies.
One or more layers of EPITHELIAL CELLS, supported by the basal lamina, which covers the inner or outer surfaces of the body.
Cells that line the inner and outer surfaces of the body by forming cellular layers (EPITHELIUM) or masses. Epithelial cells lining the SKIN; the MOUTH; the NOSE; and the ANAL CANAL derive from ectoderm; those lining the RESPIRATORY SYSTEM and the DIGESTIVE SYSTEM derive from endoderm; others (CARDIOVASCULAR SYSTEM and LYMPHATIC SYSTEM) derive from mesoderm. Epithelial cells can be classified mainly by cell shape and function into squamous, glandular and transitional epithelial cells.
Enumeration by direct count of viable, isolated bacterial, archaeal, or fungal CELLS or SPORES capable of growth on solid CULTURE MEDIA. The method is used routinely by environmental microbiologists for quantifying organisms in AIR; FOOD; and WATER; by clinicians for measuring patients' microbial load; and in antimicrobial drug testing.

Lysozyme sorption in hydrogel contact lenses. (1/217)

PURPOSE: To examine the processes involved in formation of protein deposits on hydrogel contact lenses. METHODS: The adsorption and/or penetration of lysozyme on or into three types of contact lenses, etafilcon A, vifilcon A, and tefilcon, were investigated in vitro using a radiolabel-tracer technique, x-ray photoelectron spectroscopy, and laser scanning confocal microscopy. RESULTS: Binding of lysozyme to high-water-content, ionic contact lenses (etafilcon A and vifilcon A) was dominated by a penetration process. The extent of this penetration was a function of charge density of the lenses, so that there was a higher degree of penetration of lysozyme in etafilcon A than in vifilcon A lenses. In contrast, the binding of lysozyme to tefilcon lenses was a surface adsorption process. The adsorption and desorption kinetics showed similar trends to those found in human serum albumin (HSA) adsorption on lens surfaces. However, the extent of lysozyme adsorption on tefilcon is much higher than HSA adsorption, probably because of the self-association of lysozyme on the tefilcon lens surface. Furthermore, either penetration or adsorption of lysozyme involved reversible and irreversible processes and were both time dependent. CONCLUSIONS: Binding of lysozyme to hydrogel lenses involves surface adsorption or matrix penetration. These processes may be reversible or irreversible. The properties of the lens materials, such as charge density (ionicity) and porosity (water content) of the lenses, determine the type and rates of these processes.  (+info)

Measurement of post-lens tear thickness. (2/217)

PURPOSE: A method to measure the tear film beneath a soft contact lens, referred to as post-lens tear thickness (PLTT), would have many applications to contact lens research. In this study a noninvasive technique for measuring the PLTT is presented. METHODS: The feasibility of measuring the tear layer by optical pachometry was first assessed using a model eye. The baseline corneal thickness (B) of both eyes of 21 subjects was measured, etafilcon-A ionic disposable soft contact lenses (58% water) were inserted, and the total thickness (T) of the cornea, contact lens, and PLTT were measured. After the pachometry readings the lenses were removed and their center thickness (C) determined. The PLTT was calculated using the equation: PLTT = T-(B+C). Two sets of measurements of T were performed at 15 and 25 minutes after lens insertion. The entire procedure was repeated at a second visit. RESULTS: The pachometry measurements of the small aqueous reservoir between the model eye and the lens closely matched those obtained by direct microscopic measurement. For human PLTT, the mean values (and 95% confidence intervals) for right eyes on visits 1 and 2 were 11 (8, 13) and 12 (10, 15) microm, respectively, and for left eyes were 12 (10, 15) and 11 microm (8, 14) microm, respectively. CONCLUSIONS: It is possible to measure the post-lens tear thickness using optical pachometry. The variability between repeated measurements suggests that with careful sample size planning, the technique is sufficiently precise to be useful in group assessments of PLTT.  (+info)

Sympathetic swelling response of the control eye to soft lenses in the other eye. (3/217)

PURPOSE: To compare central corneal swelling and light scatter after 8 hours of sleep in eyes wearing high- and low-Dk hydrogel lenses and to the contralateral control eyes. METHODS: Twenty neophyte subjects wore a Lotrafilcon A (Dk, 140; Ciba Vision, Duluth GA) silicone hydrogel lens and an Etafilcon A (Dk, 18; Acuvue; Vistakon, Jacksonville, FL) 58% water content hydrogel lens of similar center thickness in random order in the right eye only, for overnight 8-hour periods. The contralateral nonwearing left eyes served as controls. Central corneal thickness was measured using an optical pachometer and light scatter using a Van den Berg stray-light meter before lens insertion, after lens removal on waking, and every 20 minutes for the next 3 hours. RESULTS: Central corneal swelling induced by the Etafilcon A lens on eye opening was significantly higher than with the Lotrafilcon A lens (8.66%+/-2.84% versus 2.71%+/-1.91%; P<0.00001). Light scatter induced by the Etafilcon A lens on eye opening was significantly higher than with the Lotrafilcon A lens (46.09+/-5.62 versus 42.78+/-6.07 Van den Berg units, P = 0.0078). The swelling of the control eyes paired with the Etafilcon A lens-wearing eyes was also slightly but significantly higher than that of the control eyes paired with the Lotrafilcon A lens-wearing eyes (2.34%+/-1.26% versus 1.44%+/-0.91%; P = 0.0002). Light-scatter measurements were not significantly different between control sets of eyes but showed the same trend. CONCLUSIONS: In neophyte subjects, corneal swelling of the contralateral control eyes appears to be influenced by the swelling of the fellow lens-wearing eyes-that is, the swelling of the contralateral control eye was significantly lower when there was less swelling of the fellow eye wearing the high-Dk lens. Although there was no statistically significant difference in light-scatter measurements between the control sets of eyes, a trend similar to the corneal swelling results was observed, which could be used to support the suggestion that this may be a sympathetic physiological response rather than an unusual sampling coincidence.  (+info)

Observation of soft contact lens disinfection with fluorescent metabolic stains. (4/217)

A rapid fluorescent staining method using a tetrazolium dye and propidium iodide for the in-use assessment of disinfection of Pseudomonas aeruginosa biofilms on soft contact lenses showed that 11 to 13% of cells on lenses remained actively respiring and recoverable by culture methods after 30 min of exposure to 3% hydrogen peroxide.  (+info)

Unusual case of Acanthamoeba polyphaga and Pseudomonas aeruginosa keratitis in a contact lens wearer from Gauteng, South Africa. (5/217)

Acanthamoeba species can cause a chronic, progressive ulcerative keratitis of the eye which is not responsive to the usual antimicrobial therapy and is frequently mistaken for stromal herpes keratitis. An unusual case of coinfection with Acanthamoeba polyphaga and Pseudomonas aeruginosa as causes of corneal keratitis in a contact lens wearer from Gauteng, South Africa, is reported. These two pathogens have previously been assumed to be selectively exclusive. Cysts of the isolated acanthameba tolerated an incubation temperature of 40 degrees C, indicating a pathogenic species. This case highlights the importance of culture methods in the diagnosis of corneal infection and the choice of treatment regimen. The patient's history of careless contact lens-disinfecting habits emphasizes the need to adhere strictly to recommended methods of contact lens care.  (+info)

Apoptosis in shed human corneal cells. (6/217)

PURPOSE: To determine whether shear forces applied to the corneal epithelium by the repeated insertion and removal of a hydrogel contact lens alter the size and number of cells removed and to determine the contribution of apoptosis to this process. METHODS; Human corneal cells were collected from eight healthy subjects by sequential contact lens cytology (20 lens insertions and removals). Collected cells were stained with acridine orange for counting and measurement of cell size. In a separate experiment, collected cells were fixed and stained with TdT-mediated dUTP nick-end labeling (TUNEL) or labeled immediately after collection using annexin V. Hoechst stain and propidium iodide (PI) were used as nuclear counterstains. The proportion of cells labeled with acridine orange, TUNEL, and annexin V was quantified by fluorescence microscopy. RESULTS; The number of cells increased in later collections, and cells were smaller. The mean number of positively stained cells using TUNEL was 57%. Annexin V labeling on unfixed fresh samples showed a mean of 64%, with an increase in later collections. Apoptotic bodies were observed in very few cells. In most cells the nucleus and cytoplasmic membrane were intact. Structures were observed in which nuclei were missing (Hoechst negative) but in which cytoplasm had the size and appearance of whole, nucleated cells. These structures (cell ghosts) increased in number along with the increase in nucleated cells in later collections. CONCLUSIONS: The sequential removal of a soft contact lens caused a progressive increase in the number of cells collected from the surface and a progressive decrease in their size. The majority of nucleated cells removed by a contact lens were apoptotic in the sense of being positively labeled by TUNEL and annexin V. Morphologically they differed from classically apoptotic cells, in that cells showed an intact nuclear structure and no discernible apoptotic bodies. They could represent a last stage in a pathway of cell differentiation in which frictional forces induced by the removal of the contact lens activate the apoptotic program and cause the cell to be shed. There is also a pathway in which cells lose their nuclei before leaving the epithelial surface.  (+info)

Optical and visual impact of tear break-up in human eyes. (7/217)

PURPOSE: The purpose of this study was to examine the optical and visual impact of tear break-up. METHODS: Optical quality of the eye was assessed during periods of nonblinking by quantifying vessel contrast in the fundus image and by monitoring the psychophysical contrast sensitivity and the spatial distribution of tear thickness changes by retroillumination. All measures were obtained from three eyes either with or without a soft contact lens. RESULTS: A noticeable decrease in retinal vessel contrast and contrast sensitivity were observed soon after a blink. Both of these measures of optical quality of the eye showed a similar pattern of image degradation both with and without a soft contact lens. Although trial-to-trial variability was considerable, sample means show that image contrast in the low spatial frequency range can drop to between 20% and 40% of initial values after 60 seconds of nonblinking. Retroillumination of the tear film showed local intensity fluctuations that progressively spread across the pupil with increasing time after the blink. CONCLUSIONS: Optical aberrations created by tear break-up contribute to the decline in image quality observed objectively and psychophysically. The decline in image quality that accompanies tear break-up may be a direct cause of the blurry vision complaints commonly encountered in dry-eye patients.  (+info)

Bacterial colonization of disposable soft contact lenses is greater during corneal infiltrative events than during asymptomatic extended lens wear. (8/217)

Microorganisms, especially gram-negative bacteria, are considered to play a role in the etiology of certain corneal infiltrative events (CIEs) observed during soft contact lens wear. This study explored the possibility of microbial colonization of soft contact lenses as a risk factor leading to CIEs. In a clinical trial conducted from March 1993 to January 1996, 330 subjects wore disposable soft contact lenses on a 6-night extended-wear and disposal schedule. During this period, 4,321 lenses (118 during CIEs; 4,203 during asymptomatic lens wear) were recovered aseptically and analyzed for microbial colonization. A greater percentage of lenses were free from microbial colonization during asymptomatic wear than during CIEs (42 versus 23%; P < 0.0001). The incidence of gram-positive bacteria, gram-negative bacteria and fungi was greater during CIEs than during asymptomatic lens wear (P < 0.05). During asymptomatic lens wear, gram-positive bacteria were isolated most frequently and were usually normal external ocular microbiota. Of the gram-positive bacteria, the incidence of Streptococcus pneumoniae was greater during CIE than during asymptomatic wear (7.6 versus 0.6%; P < 0. 0001). While gram-negative bacteria were seen in few cases during asymptomatic wear, their incidence during CIE in comparison to asymptomatic wear was substantial and significant (23.7 versus 3.8%; P < 0.0001). Also, the level of colonization was high. Of CIEs, events of microbial keratitis, contact lens acute red eye, and asymptomatic infiltrative keratitis were associated with lens colonization with gram-negative bacteria or S. pneumoniae. Colonization of soft contact lenses with pathogenic bacteria, especially gram-negative bacteria and S. pneumoniae, appears to be a significant risk factor leading to CIE.  (+info)

Disinfecting solutions for use with hydrophilic soft contact lenses, containing effective amounts of C5 -C12 fatty acids, especially octanoic acid, are disclosed. These solutions provide broad spectrum antimicrobial efficacy together with rapid and complete desorption of the fatty acid antimicrobial from the contact lens material, resulting in a minimization of irritation and sensitization risks to the user. The method of disinfecting hydrophilic soft contact lenses using C5 -C12 fatty acids is also disclosed.
An in vitro model-blink cell that mimics break-up of the tear lipid layer Peng et al. developed an in vitro model-blink cell that closely represents how the tear lipid layer breaks up over the contact lens during a blink.3 Their model-blink cell works by first placing a soft contact lens in a Teflon mold that leaves the anterior surface of the contact lens exposed to the treatment conditions.3 The investigators then add an aqueous layer with a mixture of proteins to the chamber, which is followed by a layer of artificial-tear lipid solution.3 The blink is then simulated by removing the aqueous layer until there is a break in the aqueous layer, which results in the lipid layer making contact with the contact lens.3 The aqueous solution is then replaced, and the process repeated to simulate normal contact lens wear.3. Validation of their apparatus demonstrated that the device was able to produce lipid deposition patterns similar to that of human worn contact lenses.3 Peng et al.s apparatus and ...
The soft contact lenses available today are made of either hydrogel or silicone hydrogel. The question is: whats the difference between these two contact lens materials?. The history of hydrogel contact lenses. In 1959, Czech chemists Otto Wichterle and Drahoslav Lím published a paper entitled Hydrophilic Gels for Biological Use in the journal Nature. By 1961, Wichterle succeeded in making the worlds first four hydrogel contact lenses.. In 1965, the National Patent Development Corporation (NPDC) purchased the American rights to manufacture hydrogel contact lenses. The NPDC then sublicensed these rights to Bausch + Lomb.. In 1971, the US Food and Drug Administration (FDA) approved the first use of Soflens, the hydrogel material manufactured by Bausch + Lomb.. What are hydrogel contact lenses?. Hydrogel contact lenses are made of a water-infused polymer known as hydrogel. Hydrogel is a thin and pliable material, allowing it to conform to the shape of the eye.. In the 1970s, doctors started to ...
When to Vitamins and supplements may be able to help give you back some of your sparkle by making sure your body Some researchers have found that it is not as effective as vitamin D3 Sleep disorders may have reached epidemic proportions because of a common vitamin D deficiency. The Role of Thiamine Deficiency in Alcoholic Brain Disease Peter vitamin B 1 is an essential with WKS reverses many of the acute symptoms of the disease Because vitamin A and carotenoids play such a big role in cell and tissue growth The Skin Benefits of Vitamin C. High Myopia Soft Contact Lenses Colitis Floaters Eye Ulcerative dry eye is a This abnormal High Myopia Soft Contact Lenses High Myopia Soft Contact Lenses Colitis Floaters Eye Ulcerative Colitis Floaters Eye Ulcerative curvature of the cornea can cause double or blurred vision and most often affects children and young adults under 30 Information on edema and water retention swelling associated with the accumulation of fluid in spaces between the soft tissues of ...
Acuvue Oasys 1-Day 90 Pack Acuvue Oasys 1-Day 90 Pack Contact Lens Contact Lenses These comfortable and easy to wear Acuvue Oasys 1-Day 90 Pack Contact Lenses by Acuvue are available at a discount price at SmartBuyGlasses. Manufacturer: Acuvue. Water content: %. Frequency: Daily Disposable. Oxygen permeability: high. Acuvue Acuvue Oasys 1-Day 90 Pack contact lenses can be easily fitted, durable, and remain comfortable throughout the day. Warranty: 3 Months. Condition: new. UPC: . Authenticity guaranteed. Order your favourite box of contact lenses and take advantage of our easy repeat order process, so you never have to worry about running out of contacts again!
Currently wearing weekly/biweekly or monthly sphere or toric soft contact lenses (NOT including AIR OPTIX Aqua, AIR OPTIX NIGHT & DAY Aqua, AIR OPTIX for Astigmatism, Biofinity Sphere, Biofinity Toric, or ProClear Toric soft contact lenses) bilaterrally (in both eyes) and have worn these lenses for at least 3 months, daily wear use only (no extended wear ...
Select from a list of soft contact lens multi-purpose solutions that conditions, cleans, removes protein, disinfects, rinses and stores soft contact lenses including silicone hydrogel lenses from Bausch + Lomb.
TY - JOUR. T1 - Risk Factors for Acanthamoeba Keratitis-A Multistate Case-Control Study, 2008-2011. AU - Acanthamoeba Keratitis Investigation Team. AU - Brown, Allison C.. AU - Ross, Jonathan. AU - Jones, Daniel B.. AU - Collier, Sarah A.. AU - Ayers, Tracy L.. AU - Hoekstra, Robert M.. AU - Backensen, Bryon. AU - Roy, Sharon L.. AU - Beach, Michael J.. AU - Yoder, Jonathan S.. PY - 2018/9/1. Y1 - 2018/9/1. N2 - OBJECTIVE: To identify modifiable risk factors contributing to Acanthamoeba keratitis (AK) infection. METHODS: A case-control investigation was conducted. Case patients were soft contact lens wearers with laboratory-confirmed AK. Control were soft contact lens wearers ≥12 years of age, with no history of AK. Case patients were recruited from 14 ophthalmology referral centers and a clinical laboratory. Control were matched on state of residence and type of primary eye care provider (ophthalmologist or optometrist). Participants were interviewed using a standardized questionnaire. ...
United States Patent 3,813,447 HYDROPHILIC SYNTHETIC HIGH POLYMERS FOR SOFT CONTACT LENSES AND A PROCESS FOR MANUFACTURING THE SAME Kyoichi Tanaka, Takeshi Mio, and Toyoyasu Tanaka, Nagoya, Japan, assignoi-Is to Toyo Contact Lens Coman Limited, Nagoya, apan No Drawing. Filed Sept. 15, 1971, Ser. No. 180,849 Claims priority, application Japan, Sept. 19, 1970, 45/82,164 Int. Cl. C08f 15/40 US. Cl. 260-63 UY 6 Claims ABSTRACT OF THE DISCLOSURE A hydrophilic synthetic high polymer having an excellent workability and especially sutiable [for the preparation of soft contact lenses, artificial corneas, and optical lenses for medical use, and a process for manufacturing the same essentially comprising the steps of preparing a solution by either mixing a 2-hydroxyethyl methacrylate mono mer, a vinyl acetate monomer and a cross-linking monomer, or mixing a Z-hydroxyethyl methacrylate monomer, a. vinyl acetate monomer and a cross-linking monomer, an N-(1,1-dimethyl-3-oxobutyl) acrylamide, adding a catalyst ...
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Recall Class: Class I. Date Recall Initiated: November 15, 2011. Product(s): AVAIRA AQUAFORM Comfort Science enfilcon A Daily Wear SPHERE Soft Contact Lenses (disposable). Go to the CooperVision recall web page at www.coopervision.com/international-recall [1], and enter the package lot number to determine whether the lenses have been recalled or contact the toll-free consumer hotline at 1-855-526-6737.. These lenses were manufactured from February 1, 2011 through August 24, 2011 and distributed from March 2, 2011 through November 15, 2011.. Use: For the correction of myopia or hyperopia in aphakic and non-aphakic persons with non-diseased eyes. The lenses may be worn by persons who exhibit astigmatism of 2.00 diopters or less that does not interfere with visual acuity. Recalling Firm:. CooperVision Inc. 6150 Stoneridge Mall Road, Suite 370. Pleasanton, California 94588. Reason for Recall: The unintended presence of a silicone oil residue on AVAIRA Sphere soft contact lenses. Symptoms may range ...
Participants were equally randomized to one of 6 treatment sequences: RD2117-01, Air Optix Aqua, Acuvue Oasys; RD2117-01, Acuvue Oasys, Air Optix Aqua; Air Optix Aqua, RD2117-01, Acuvue Oasys; Air Optix Aqua, Acuvue Oasys, RD2117-01; Acuvue Oasys, RD2117-01, Air Optix Aqua; Acuvue Oasys, Air Optix Aqua, RD2117-01. All participants wore each of the 3 lenses for one week ...
There is prepared a hydrophilic water swellable, water insoluble copolymer of (1) at least 35% of a hydroxy (C2 -C4 -alkyl)-2-alkenoate, (2) 30 to 60% of a 2-alkenamide or an N, N-di (C1 -C6 -alkyl)2-alkenamide, (3) 5 to 20% of R --OR1 --x Z where R is C1 -C6 alkyl, R1 is C2 -C4 alkylene, x is an integer of 1 to 4 and Z is 2-alkenoyloxy and (4) 0.3 to 5% of a polyethylenically unsaturated crosslinking agent having a relatively long aliphatic chain, the copolymer being capable of holding 50 to 80 weight % of water. The polymers are particularly useful in preparing hydrophilic contact lenses of high burst strength and extended wear properties.
Sensitive Eyes Plus Saline Solution For Soft Contact Lenses, With Potassium at Walgreens. Get free shipping at $35 and view promotions and reviews for Sensitive Eyes Plus Saline Solution For Soft Contact Lenses, With Potassium
trueye 1 day acuvue uv block contact lens 1-Day Acuvue TruEye worlds FIRST daily disposable contact lens that comes in a new breathable silicone hydrogel material. TruEye has an innovative silicone hydrogel material saturated locked-in super smooth wetting agent which does not slow release onto the eye. Acuvues new TruEye contact lenses are truly remarkable you will regain incredible white eyes and comfort at end day because the super wet and super smooth surface has the lowest friction coefficient of any one day disposable lens on the market today. This great news for contact lens wearers experiencing pink eyes after long day. 1 Day Acuvue TruEye contact lens material UV blocking. Please note, UV blocking is not a substitute for sunglasses.
trueye 1 day acuvue uv block contact lens 1-Day Acuvue TruEye worlds FIRST daily disposable contact lens that comes in a new breathable silicone hydrogel material. TruEye has an innovative silicone hydrogel material saturated locked-in super smooth wetting agent which does not slow release onto the eye. Acuvues new TruEye contact lenses are truly remarkable you will regain incredible white eyes and comfort at end day because the super wet and super smooth surface has the lowest friction coefficient of any one day disposable lens on the market today. This great news for contact lens wearers experiencing pink eyes after long day. 1 Day Acuvue TruEye contact lens material UV blocking. Please note, UV blocking is not a substitute for sunglasses.
The FDA has granted marketing clearance for RevitaLens Ocutec Multi-purpose Disinfecting Solution for use with silicone hydrogel and conventional hydrogel contact lenses.
Corneal abrasions are generally a result of trauma to the surface of the eye. Common causes include being poked by a finger, walking into a tree branch, and wearing old contact lenses.[citation needed] A foreign body in the eye may also cause a scratch if the eye is rubbed. Injuries can also be incurred by hard or soft contact lenses that have been left in too long. Damage may result when the lenses are removed, rather than when the lens is still in contact with the eye. In addition, if the cornea becomes excessively dry, it may become more brittle and easily damaged by movement across the surface. Soft contact lens wear overnight has been extensively linked to gram negative keratitis (infection of the cornea) particularly by a bacterium known as Pseudomonas aeruginosa which forms in the eyes biofilm as a result of extended soft contact lens wear. When a corneal abrasion occurs either from the contact lens itself or another source, the injured cornea is much more susceptible to this type of ...
Designed specifically for use during chemical disinfection of soft (hydrophilic) contact lenses, the ReNu® leak proof lens case is compact, durable, and easy to use. To prevent lens mix-ups, left and right caps are clearly marked. Caps form a leak-proof seal, and they open and close easily. Lens cases can be a significant source of microbial contamination. To help prevent eye infections, lens cases should be cleaned, rinsed, and air dried every day and replaced at least every three months ...
A non-suction cup-type instrument for the insertion and removal of soft contact lenses is made of surgical rubber. It includes a central portion which looks somewhat like a suction cup having two sides cut away, and has small wedge-shaped contact lens-engaging elements or members protruding inwardly from each side of this suction cup-like member. It is again particularly noted that no suction cup action is involved in the present instrument. The instrument is also provided with two resilient arms which are aligned with the wedge-shaped contact lens engaging elements and which may be employed to support these elements and hold the lens more firmly once they are engaged. The space between the two wedge-shaped contact lens-engaging members, which incidentally have an overall configuration corresponding to opposed segments of a circle, is such that they are spaced apart by slightly less than the diameter of a contact lens.
11 Sep 2020. Thanks to its enhanced breathability, silicone hydrogel is quickly becoming a favoured material in the soft contact lens industry. By allowing more oxygen - up to 5 times more - to flow into the eyes, these silicone hydrogel lenses provide all day comfort without red eyes.. Indeed, because their oxygen permeability is so strong, silicone hydrogel contacts are sometimes approved for overnight wear. In addition to their breathability, silicone hydrogel contacts are far better at retaining water than typical soft lenses. This makes them an ideal choice for people who struggle with conditions like dry eye syndrome. ...
Lenses featuring multifocality lenses visual performance, in particular when fitting completion will be charged at moist standard fee. The lenses can be worn all day, remembering to up my supply of my monthlies and contact be. For acuvue undistorted vision, the cornea should be smooth and assurance, and have a CE safety certification.. Contact lenses enhance a lenses coloured eye whereas others lenses acuvue many of the top brands in Australia. Long ago, during the 1950s, the farmers realized that lenses largest inventory of contact lenses - almost 10 lenses to enhance their appearance. Johnson and Johnsons 1 Day Acuvue Moist offers the cost and shipped free with the next order, provided that the lens manufacturer acuvue moist for astigmatism monthly the lens is defective. Contact lenses allow you to enjoy the benefits of clear vision without having to wear prescription eyeglasses moist our products. The lenses can be worn moist day, contact to acuvue and care information before using our ...
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Antimicrob Agents Chemother. 2008 Jan;52(1):171-82. Epub 2007 Nov 12. Research Support, N.I.H., Extramural; Research Support, Non-U.S. Govt
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Centers RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.. ...
1-Day Acuvue Define 30PK Contact Lenses (as low as $38.99) at 1-800-GET-LENS ® - Lowest Price Guaranteed on 1-Day Acuvue Define 30PK Contact Lenses. Take advantage of our discounted prices (as low as $38.99) and purchase your 1-Day Acuvue Define 30PK contact lenses online now. 1-Day Acuvue Define 30PK contact lenses are manufactured by Johnson & Johnson.
Soft contact lens - Bausch + Lomb Biotrue Multipurpose Solution for Soft Contact.... We provides discount Herbal health and beauty products made in USA. Find on-line health supplements and Herbal beauty products here.
The purpose of this study was to assess whether differences in central corneal dendritic immune cell densities associated with combinations of soft contact lenses and lens care solutions could be detected by in vivo confocal microscopy. Partici
Works like your eyes. Up to 20 hours of moisture (Our laboratory research shows that Biotrue multi-purpose solution helps keep lenses moist for up to 20 hours. Wed love to hear how Biotrue multi-purpose solution is making wearing your contacts easier on your eyes). Makes wearing lenses easier on your eyes. pH balanced to match healthy tears. Kills 99.9% of germs. Conditions, cleans, removes protein, disinfects, rinses, stores, for soft contact lenses including silicone hydrogel lenses. Sterile. Biotrue multi-purpose solution for soft contact lenses including silicone hydrogel lenses. The world can be tough on your eyes when you wear contact lenses. In a world of less sleep and more computer use it can be difficult for your eyes to stay comfortable and moist, especially when wearing contacts. Biotrue multi-purpose solution makes wearing contact lenses easier on your eyes. Biotrue is easier on your eyes because it works like your eyes. Biotrue has the same pH as healthy tears and a lubricant ...
While silicone hydrogel lenses tend to allow for sufficient air permeability, the traditional hydrogel varieties do not. According to a 2004 article by Robert B. Steffen and Kevin P. McCabe in Contact Lens Spectrum, a common problem with traditional hydrogel lenses is that they do not let in enough air. This can cause your contacts and eyes to feel dry after long periods (throughout a day), and in worst-case scenarios, can cause corneal edema. According to Innvista, corneal edema is your bodys response to excessive dryness of the eye and is associated with the soaking of the cornea with fluids. These fluids can cause blurred vision, halos around lights, and eye pain ...
UV PROTECTION. Consumer research has shown that UV protection is an important lens attribute for patients. In fact, 3 of 4 patients report that they want UV protection from their contact lenses, and 1 of 2 say they would switch brands for UV protection. Since 1997, ACUVUE® Brand Contact Lenses have led the way in UV blocking. All ACUVUE® Brand Contact Lenses are FDA approved to help provide protection against transmission of harmful UV radiation to the cornea and into the eye.*. ACUVUE® Brand Contact Lenses block approximately 82% of UV-A radiation and 97% of UV-B radiation. On the average, contact lenses without UV blocking block approximately 10% of UV-A radiation and 30% of UV-B radiation1.. 1 Harris MG, Hararifar M, Hirano K. Transmittance of tinted and UV-blocking disposable contact lenses. Optom Vis Sci 1999;76(3):177-180.. * WARNING: UV-absorbing contact lenses are NOT substitutes for protective UV-absorbing eyewear such as UV-absorbing goggles or sunglasses, because they do not ...
UPC 310119035887 B01IAI14CG 623588 Bausch and Lomb Biotrue for Soft Contact Lenses 10 oz Multi-Purpose Solution, 2 ct: Preferred 3:1 over the leading multi-purpose , also find 310119035887 barcode , images and shopping info of UPC 310119035887
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This research suggests children are capable of soft, gas permeable and orthokeratology contact lens wear, says Jeffrey J. Walline, OD, PhD, associate dean for Research at The Ohio State University. Although no single study provides a comprehensive examination of contact lens safety in children, a review of the literature provides consistent evidence of the safety of pediatric contact lens wear.. Based on three large prospective studies representing between 159 and 723 years of soft contact lens wear in eight- to 14-year-olds, the incidence of corneal infiltrative events is up to 136 per 10,000 years, Dr. Bullimore found. A large retrospective study found a rate of 97 per 10,000 years in eight- to 12-year-olds and 335 per 10,000 years in 13- to 17-year-olds.1 In comparison, Dr. Bullimore notes the incidence of symptomatic corneal infiltrative events in adults in the last decade was 432 per 10,000 patient years of mostly daily wear and 316 per 10,000 patient years for daily silicone hydrogel ...
Important information for contact lens wearers: ACUVUE® 2 COLOURS™ Brand Contact Lenses are available with and without vision correction, so even people without a need for vision correction can wear them once they complete an eye exam, are properly fitted and have had the lenses prescribed by an eye care professional. Although rare, serious eye problems can develop while wearing contact lenses. To help avoid these problems, follow the wear and replacement schedule and the lens care instructions provided by your eye doctor. Do not wear contact lenses if you have an eye infection, or experience eye discomfort, excessive tearing, vision changes, redness or other eye problems. If one of these conditions occurs, contact your eye doctor immediately. You should never share your lenses with anyone else. For more information on proper wear, care and safety, talk to your eye care professional and ask for Patient Instruction Guide, call 1-800-843-2020 or visit acuvue.com ...
Important information for contact lens wearers: ACUVUE® 2 COLOURS™ Brand Contact Lenses are available with and without vision correction, so even people without a need for vision correction can wear them once they complete an eye exam, are properly fitted and have had the lenses prescribed by an eye care professional. Although rare, serious eye problems can develop while wearing contact lenses. To help avoid these problems, follow the wear and replacement schedule and the lens care instructions provided by your eye doctor. Do not wear contact lenses if you have an eye infection, or experience eye discomfort, excessive tearing, vision changes, redness or other eye problems. If one of these conditions occurs, contact your eye doctor immediately. You should never share your lenses with anyone else. For more information on proper wear, care and safety, talk to your eye care professional and ask for Patient Instruction Guide, call 1-800-843-2020 or visit acuvue.com ...
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Important information for contact lens wearers: ACUVUE® 2 COLOURS™ Brand Contact Lenses are available with and without vision correction, so even people without a need for vision correction can wear them once they complete an eye exam, are properly fitted and have had the lenses prescribed by an eye care professional. Although rare, serious eye problems can develop while wearing contact lenses. To help avoid these problems, follow the wear and replacement schedule and the lens care instructions provided by your eye doctor. Do not wear contact lenses if you have an eye infection, or experience eye discomfort, excessive tearing, vision changes, redness or other eye problems. If one of these conditions occurs, contact your eye doctor immediately. You should never share your lenses with anyone else. For more information on proper wear, care and safety, talk to your eye care professional and ask for Patient Instruction Guide, call 1-800-843-2020 or visit acuvue.com ...
Important information for contact lens wearers: ACUVUE® 2 COLOURS™ Brand Contact Lenses are available with and without vision correction, so even people without a need for vision correction can wear them once they complete an eye exam, are properly fitted and have had the lenses prescribed by an eye care professional. Although rare, serious eye problems can develop while wearing contact lenses. To help avoid these problems, follow the wear and replacement schedule and the lens care instructions provided by your eye doctor. Do not wear contact lenses if you have an eye infection, or experience eye discomfort, excessive tearing, vision changes, redness or other eye problems. If one of these conditions occurs, contact your eye doctor immediately. You should never share your lenses with anyone else. For more information on proper wear, care and safety, talk to your eye care professional and ask for Patient Instruction Guide, call 1-800-843-2020 or visit acuvue.com ...
Important information for contact lens wearers: ACUVUE® 2 COLOURS™ Brand Contact Lenses are available with and without vision correction, so even people without a need for vision correction can wear them once they complete an eye exam, are properly fitted and have had the lenses prescribed by an eye care professional. Although rare, serious eye problems can develop while wearing contact lenses. To help avoid these problems, follow the wear and replacement schedule and the lens care instructions provided by your eye doctor. Do not wear contact lenses if you have an eye infection, or experience eye discomfort, excessive tearing, vision changes, redness or other eye problems. If one of these conditions occurs, contact your eye doctor immediately. You should never share your lenses with anyone else. For more information on proper wear, care and safety, talk to your eye care professional and ask for Patient Instruction Guide, call 1-800-843-2020 or visit acuvue.com ...
Important information for contact lens wearers: ACUVUE® 2 COLOURS™ Brand Contact Lenses are available with and without vision correction, so even people without a need for vision correction can wear them once they complete an eye exam, are properly fitted and have had the lenses prescribed by an eye care professional. Although rare, serious eye problems can develop while wearing contact lenses. To help avoid these problems, follow the wear and replacement schedule and the lens care instructions provided by your eye doctor. Do not wear contact lenses if you have an eye infection, or experience eye discomfort, excessive tearing, vision changes, redness or other eye problems. If one of these conditions occurs, contact your eye doctor immediately. You should never share your lenses with anyone else. For more information on proper wear, care and safety, talk to your eye care professional and ask for Patient Instruction Guide, call 1-800-843-2020 or visit acuvue.com ...
Important information for contact lens wearers: ACUVUE® 2 COLOURS™ Brand Contact Lenses are available with and without vision correction, so even people without a need for vision correction can wear them once they complete an eye exam, are properly fitted and have had the lenses prescribed by an eye care professional. Although rare, serious eye problems can develop while wearing contact lenses. To help avoid these problems, follow the wear and replacement schedule and the lens care instructions provided by your eye doctor. Do not wear contact lenses if you have an eye infection, or experience eye discomfort, excessive tearing, vision changes, redness or other eye problems. If one of these conditions occurs, contact your eye doctor immediately. You should never share your lenses with anyone else. For more information on proper wear, care and safety, talk to your eye care professional and ask for Patient Instruction Guide, call 1-800-843-2020 or visit acuvue.com ...
Important information for contact lens wearers: ACUVUE® 2 COLOURS™ Brand Contact Lenses are available with and without vision correction, so even people without a need for vision correction can wear them once they complete an eye exam, are properly fitted and have had the lenses prescribed by an eye care professional. Although rare, serious eye problems can develop while wearing contact lenses. To help avoid these problems, follow the wear and replacement schedule and the lens care instructions provided by your eye doctor. Do not wear contact lenses if you have an eye infection, or experience eye discomfort, excessive tearing, vision changes, redness or other eye problems. If one of these conditions occurs, contact your eye doctor immediately. You should never share your lenses with anyone else. For more information on proper wear, care and safety, talk to your eye care professional and ask for Patient Instruction Guide, call 1-800-843-2020 or visit acuvue.com ...
Important information for contact lens wearers: ACUVUE® 2 COLOURS™ Brand Contact Lenses are available with and without vision correction, so even people without a need for vision correction can wear them once they complete an eye exam, are properly fitted and have had the lenses prescribed by an eye care professional. Although rare, serious eye problems can develop while wearing contact lenses. To help avoid these problems, follow the wear and replacement schedule and the lens care instructions provided by your eye doctor. Do not wear contact lenses if you have an eye infection, or experience eye discomfort, excessive tearing, vision changes, redness or other eye problems. If one of these conditions occurs, contact your eye doctor immediately. You should never share your lenses with anyone else. For more information on proper wear, care and safety, talk to your eye care professional and ask for Patient Instruction Guide, call 1-800-843-2020 or visit acuvue.com ...
Important information for contact lens wearers: ACUVUE® 2 COLOURS™ Brand Contact Lenses are available with and without vision correction, so even people without a need for vision correction can wear them once they complete an eye exam, are properly fitted and have had the lenses prescribed by an eye care professional. Although rare, serious eye problems can develop while wearing contact lenses. To help avoid these problems, follow the wear and replacement schedule and the lens care instructions provided by your eye doctor. Do not wear contact lenses if you have an eye infection, or experience eye discomfort, excessive tearing, vision changes, redness or other eye problems. If one of these conditions occurs, contact your eye doctor immediately. You should never share your lenses with anyone else. For more information on proper wear, care and safety, talk to your eye care professional and ask for Patient Instruction Guide, call 1-800-843-2020 or visit acuvue.com ...
Important information for contact lens wearers: ACUVUE® 2 COLOURS™ Brand Contact Lenses are available with and without vision correction, so even people without a need for vision correction can wear them once they complete an eye exam, are properly fitted and have had the lenses prescribed by an eye care professional. Although rare, serious eye problems can develop while wearing contact lenses. To help avoid these problems, follow the wear and replacement schedule and the lens care instructions provided by your eye doctor. Do not wear contact lenses if you have an eye infection, or experience eye discomfort, excessive tearing, vision changes, redness or other eye problems. If one of these conditions occurs, contact your eye doctor immediately. You should never share your lenses with anyone else. For more information on proper wear, care and safety, talk to your eye care professional and ask for Patient Instruction Guide, call 1-800-843-2020 or visit acuvue.com ...
Important information for contact lens wearers: ACUVUE® 2 COLOURS™ Brand Contact Lenses are available with and without vision correction, so even people without a need for vision correction can wear them once they complete an eye exam, are properly fitted and have had the lenses prescribed by an eye care professional. Although rare, serious eye problems can develop while wearing contact lenses. To help avoid these problems, follow the wear and replacement schedule and the lens care instructions provided by your eye doctor. Do not wear contact lenses if you have an eye infection, or experience eye discomfort, excessive tearing, vision changes, redness or other eye problems. If one of these conditions occurs, contact your eye doctor immediately. You should never share your lenses with anyone else. For more information on proper wear, care and safety, talk to your eye care professional and ask for Patient Instruction Guide, call 1-800-843-2020 or visit acuvue.com ...
Purpose: : To report on the incidence and type of adverse events in a group of Chinese children wearing silicone hydrogel contact lenses (CL) over a 12 month period. Methods: : In a prospective clinical trial, 240 children, aged 8 to 14 yrs were enrolled to wear silicone hydrogel CL (Lotrafilcon B, both single vision and novel myopia control CL) on a daily wear, monthly replacement schedule. The trial was part of Vision CRC myopia control studies conducted at Zhongshan Ophthalmic Centre, Guangzhou, China. Adverse events observed during the 12 month period were categorised using the BHVI/LVPEI categorisation system as Serious, Significant and Non-significant events. The total number of patient eye years in the study was determined. Incidence was calculated as the number of adverse events divided by the total number of patient eye years and reported as Incidence per 100 patient eye years (Incidence %). Results: : The number of patient eye years in the study was 411. There were no serious adverse ...
Dumbleton, K., Woods, C.A., Jones, L. and Fonn, D. 2009, The role of replacement frequency in subjective comfort and vision with silicone hydrogel contact lenses, in ISCLR 2009 : Proceedings of the 15th International Society for Contact Lens Research symposium 2009, International Society for Contact Lens Research, [Crete, Greece]. ...
Silicone hydrogel contact lenses are soft lenses that have been developed specifically for continuous wear, made of a material with superior oxygen permeability - more oxygen reaches the cornea. Popular brands include Air Optix, Acuvue Oasys, Biofinity and Purevision.
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Click Here to Download the Latest Sample of Weekly Disposable Contact Lens Market Report (use Official Email Id for Higher Priority). In an attempt to help our customers make informed business decisions. With a team of dynamic industry experts, we also offer our customers a high-quality market study that helps them understand new market paths, as well as pioneering approaches to gain market share. In addition, the Weekly Disposable Contact Lens market has to be categorized according to geographical criteria.. Furthermore, the Weekly Disposable Contact Lens Market Report offers an objective, impartial assessment, and study of opportunities in the global market with a systematic market study report that covers a number of other key market-related factors. Our seasoned industry analysts estimate Weekly Disposable Contact Lens market share, supply chains, market size, growth opportunities, applications, costs, import and export, technologies, companies, etc.. The Weekly Disposable Contact Lens ...
When your eyes are closed with contacts on, the oxygen exchange to your eye is inhibited even more than normal. This results in increased swelling of the cornea (edema) and can cause the contact lens to fit improperly, which can lead to acute red eye irritation. If the cornea is repeatedly deprived of oxygen (hypoxia), the eye may form new blood vessels (corneal neovascularization) or improperly formed cells that may rupture (corneal microcysts). Complications can change the surface and shape of the cornea, ultimately making it unsafe to wear contact lenses. To counter this, contact lens manufacturers have created extended wear contact lenses which increase the oxygen permeability of contact lenses. These contacts are approved for up to 30 days continuous wear, but these claims must be taken with caution. In the manufacturers own literature, only 80% of patients are expected to be able to achieve 30 days of continuous wear and 3-5% of wearers developed corneal inflammation accompanied with mild ...
For Use: Before First Use: Rinse lens case and caps thoroughly with fresh contact lens disinfecting solution. Chemical Disinfection: Clean and rinse contact lenses as directed by eye care professional. Place contact lenses into their correct chamber of the contact lens case, fill with fresh contact lens disinfecting solution, and tightly close the caps. Leave the contact lenses in the lens case according to the directions provided with your contact lens disinfecting solution. Important: If a contact lens chamber appears to be dry following the disinfection cycle, do not try to remove the contact lens. Refill the chamber with fresh saline or contact lens disinfecting solution, replace lens cap tightly and allow 20-40 minutes for the contact lens to rehydrate. If a lens chamber continue to dry out, the case should no longer be used and should be replaced. For Good Contact Lens Care: After each use, rinse both lens case and caps with the fresh contact lens disinfecting solution used in your contact ...
Purpose: : To report the incidence and type of adverse events in a group of Chinese children wearing silicone hydrogel contact lenses (CL) over 2 years. Methods: : Children aged 8 to 14 yrs were enrolled in a prospective clinical trial to wear silicone hydrogel CL (both single vision and novel myopia control CL) on a daily wear, peroxide disinfection (Clear Care® , CIBA VISION), monthly replacement schedule as part of Vision CRC myopia control studies. The trial was conducted at Zhongshan Ophthalmic Centre, Guangzhou, China. Adverse events observed during the 2 year period with wear of the control, single vision, commercially available contact lens design (Lotrafilcon B, CIBA VISION) in 63 children were categorised using the BHVI/LVPEI categorisation system as Serious, Significant and Non-significant events. The total number of patient eye years in the study was determined. Incidence was calculated as the number of adverse events divided by the total number of patient eye years and reported as ...
Purpose: Discontinuation from contact lens wear has been identified as a contributing factor in the lack of growth of contact lens use in Europe. The purpose of this study was to determine the proportion of lapsed contact lens wearers that can be refitted successfully with contact lenses and to evaluate the reasons for discontinuation from contact lens wear. Methods: This was a multi-site clinical study involving 15 UK investigators and 236 lapsed contact lens wearers who had previously tried contact lenses and discontinued. The reasons for discontinuation were assessed by subjects, who were then refitted with contact lenses. Investigators subsequently evaluated factors associated with their initial discontinuation. Short-term success was defined as the successful completion of 1 month of contact lens wear with absence of complications that would prevent further wear. Subjects were interviewed by telephone 6 months after being refitted to determine whether they were still wearing contact lenses. ...
Halloween contact lenses. Halloween contact lenses are also known as decorative contact lenses, costume contact lenses, novelty contact lenses, or special effect contact lenses. People use these contact lenses to elevate the look of their costumes on Halloween. Actors and actresses also use these contact lenses when playing characters such as vampires, werewolves, or zombies in movies and TV shows.. Most Halloween contact lenses are purely cosmetic (Plano), which means they wont correct your vision. The FDA considers these types of contact lenses as medical devices just the same, so youll still need a valid prescription from your eye care professional if you plan on buying a pair.. Buying Halloween contact lenses. You can buy Halloween contact lenses from ecommerce contact lens sites, brick-and-mortar stores, and even at the offices of some eye care professionals. However, shopping for Halloween contact lenses online is your best option. Here are three reasons why:. ...
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A method for manufacturing a contactless wettable water-repellent material contact lens, comprising: forming a plurality of mold portions from a polymer base material, the mold portions including a first mold portion and a second mold portion, the first A mold portion has a first lens forming region including an optical quality concave surface, the second mold portion having a second lens forming region including an optical quality convex surface, wherein each lens forming region of the mold portions includes the polymerization a substrate material; placing a lens precursor composition comprising at least one germanium-containing monomer on the optical quality concave surface of the first mold portion; placing the second mold portion on the first mold portion such that the first The optical quality convex surface of the second mold portion and the optical quality concave surface of the first mold portion form a contact lens shaped cavity; the second mold portion and the first mold portion are ...
JACKSONVILLE, Fla. (September 5, 2012)  -- Soft contact lenses are worn safely and comfortably by millions of people worldwide, and have a long history of providing wearers with a safe and effective form of vision correction when properly worn and cared for.  However, research shows that many contact lens wearers are significantly non-compliant in virtually all active steps involved in soft contact lens wear, including hand washing, case hygiene, lens disinfection, and following the recomm...
Silicone hydrogel lenses are increasingly accepted among eye care professionals as they provide greater benefits to users because their high Dk means they are more permeable to oxygen.. The lipid action mechanism on silicone hydrogel lenses is different from that of traditional disposable lenses.. The materials of this type of lenses have different characteristics to those used in conventional hydrogel contact lenses and so their maintenance must also be different.. ...
Purpose: Nerve growth factor (NGF) has been shown to be upregulated in conditions, which damage corneal nerves and to relieve dry eye. How NGF changes in nerve injury induced by established contact lens wear is not clear. The purpose of this study was to measure the subepithelial nerve plexus and tear NGF and transforming growth factor (TGF)-β1 levels in patients with established contact lens associated with dry eye.. Methods: Non-contact lens wearers and subjects who had worn soft contact lenses for more than 1 year were recruited and were divided into three groups: (1) normal controls; (2) contact lens wearers without dry eye; (3) contact lens wearers with dry eye. Corneal sensitivity was measured with a Cochet-Bonnet aesthesiometer. Nerve density and branching in the subepithelial plexus were measured using in vivo confocal microscopy. Tear NGF and TGF-β1 levels were measured with an enzyme immuno assay.. Results: There was a statistically significant decrease of corneal sensitivity in ...
For many years, the contact lens field had focused on safety associated with contact lens wear-and for good reason, given the lack of understanding of the risk factors and etiology of serious complications such as microbial keratitis. However, as knowledge came to light on these complications through the 1980s and 1990s, it allowed for practitioners to become more comfortable managing these complications, along with the introduction of products that helped reduce or prevent some of these problems. It was during this time, beginning in the mid-1980s, that the field itself became cognizant of the issues associated with comfort, or discomfort, during contact lens wear. Since that time, we have witnessed the field (and industry) shift its attention toward understanding the issue of contact lens discomfort (CLD). Contact lens discomfort is a substantial and burdensome problem experienced frequently by contact lens wearers. It is well established that most contact lens wearers experience CLD, at least ...
Wöhlk are a German producer of contact lenses and their accessories. They are a guarantee of quality with a good worldwide reputation.
Contact Lens Market: Global Demand, Growth Analysis & Opportunity Outlook 2023. The global contact lens market is segmented into design such as spherical contact lenses, toric contact lenses and multifocal contact lenses. Among these segments, multifocal contact lenses segment is expected to occupy top position in overall contact lens market during the forecast period. The growth of multifocal contact lens segment can be attributed to its multiple prescriptions capabilities. Furthermore, growing cases of age related ophthalmic disorders such as presbyopia are expected to augment the growth of multifocal contact lens market.. Global contact lens market is expected to flourish at a CAGR of 8.1% over the forecast period. Moreover, the global contact lens market is anticipated to garner USD18.1 Billion by the end of 2023. Increasing number of ophthalmic cases in youngsters and middle age population, rising awareness and increasing disposable income are some of the major factors behind the growth of ...
And Many Others……. Get a PDF Sample of Contact Lenses Sales Market Research Report at: http://www.360marketupdates.com/enquiry/request-sample/10428795. After the basic information, the Contact Lenses Sales Market report sheds light on the production. Production plants, their capacities, global production and revenue are studied. Also, the Contact Lenses Sales Market growth in various regions and R&D status are also covered.. Following are Major Table of Content of Contact Lenses Sales Industry:. • Contact Lenses Sales Market Competition by Manufacturers. • Contact Lenses Sales Production, Revenue (Value) by Region (2016-2021). • Contact Lenses Sales Supply (Production), Consumption, Export, Import by Regions (2016-2021). • Contact Lenses Sales Production, Revenue (Value), Price Trend by Type. • Contact Lenses Sales Market Analysis by Application. • Contact Lenses Sales Manufacturers Profiles/Analysis. • Contact Lenses Sales Manufacturing Cost Analysis. • Industrial Chain, ...
New Delhi Aug 12 (IANS) Have you been recently detected with a vision prescription and are now worried about applying make-up? Or are you someone whos been a long time contact lens wearer, but worry about ruining your makeup, and even your eyes? Lets bring an end to your agony.. Eye redness, itching and watering are some of the problems that contact lens wearers are quite familiar with and hence experts like Bausch & Lomb Indias key opinion leader Proffesor Monica Chaudhry and and Premvardhan, Regional medical director, Eye-Q super specialty eye hospitals suggest tips that comes in handy the next time you want to apply makeup while wearing your contact lenses.. * Maintain proper hygiene: Considering you touch a thousand things during the day and may even miss out on washing your hands, you definitely would not like millions of bacteria to enter your eyes through your fingertips. Hence, always ensure washing your hands thoroughly before wearing lenses.. * Always put you lenses in first: As a ...
colored and decorative contact lenses: a prescription is, Decorative contact lenses, also called colored or costume contact lenses, are not cosmetics or over-the-counter merchandise. they are medical devices. Halloween contact lenses and other special-effect contacts, Special effect contact lenses, including halloween, crazy and black sclera contacts; whether you need a prescription; where to buy; and photo gallery.. Fx contact lenses: costume, theatrical, special effects, Fx contact lenses - theatrical, halloween costume & scary special effects contacts. red & blue vampire color, black wolf, yellow cat eye & white. Contact lenses , escapade® uk, Our contact lenses products. these are the 28 products we could find for contact lenses. if what you are looking for is not listed, you might want to try. Colored contact lenses , 1-800 contacts connect, Curious about colored contact lenses? learn more about tints, caring for your lenses, and how to determine which colored lenses are best for ...
As we all get older, the crystalline lens inside your eyes becomes less flexible, which means it becomes difficult to focus on objects close to you. This condition is called presbyopia. Now, our technologically advanced multifocal contact lenses allow you to see in the distance as well as close-up.. Multifocal contact lenses are designed with a gradual change in prescription between close and distance viewing. The most common design is a set of concentric circles of lens powers for the different viewing distances. These powers are normally blended. Your natural viewing experience means the pupil size varies depending on which distance you are looking hence covering different concentric ring powers.. Multifocal contact lenses are available as soft daily disposable contact lenses, which can be worn occasionally. They are also available as a two weekly and monthly contact lens for those who like to wear them more frequently. ...
Abstract 1.1 Purpose The purpose of this study is to prescribe follicular-like conjunctivitis associated with Siliconhydrogels (FoCoSi) in silicone hydrogel contact lens wearers as a novel subtype of the well prescribed contact lens induced papillary conjunctivitis (CLPC). 1.2 Methods 1211 patients who wore silicon hydrogels were included in this prospective, nonrandomised, single center study. Subjective symptoms and clinical signs were evaluated for daily wear (DW) and continuous wear (CW) populations for several (Lotrafilcon A, Lotrafilcon B, Senofilcon A, Galyfilcon A) silicon hydrogel lens types. CCLRU and other specifically developed grading scale were utilized for evaluation. Grading of 2 and above was rated as clinically significant. Statistical evaluation was performed for eyes rather than subjects. 1.3 Results The clinical presentation of FoCoSi could be confirmed and showed an incidence of 3.8%. Lotrafilcon A followed by Senofilcon A on a CW modality presented, with a risk ratio of ...
Abstract 1.1 Purpose The purpose of this study is to prescribe follicular-like conjunctivitis associated with Siliconhydrogels (FoCoSi) in silicone hydrogel contact lens wearers as a novel subtype of the well prescribed contact lens induced papillary conjunctivitis (CLPC). 1.2 Methods 1211 patients who wore silicon hydrogels were included in this prospective, nonrandomised, single center study. Subjective symptoms and clinical signs were evaluated for daily wear (DW) and continuous wear (CW) populations for several (Lotrafilcon A, Lotrafilcon B, Senofilcon A, Galyfilcon A) silicon hydrogel lens types. CCLRU and other specifically developed grading scale were utilized for evaluation. Grading of 2 and above was rated as clinically significant. Statistical evaluation was performed for eyes rather than subjects. 1.3 Results The clinical presentation of FoCoSi could be confirmed and showed an incidence of 3.8%. Lotrafilcon A followed by Senofilcon A on a CW modality presented, with a risk ratio of ...
Contact lens wearers are susceptible to a variety of conditions that are either directly or indirectly linked to contact lens use. These conditions can be loosely grouped into three categories: hypoxia, an oxygen deficiency condition; allergic reactions and infections; and dry eye. Both soft and hard contact lens wearers can be affected by any of these conditions. Our doctors have significant experience with diseases affecting contact lens wearers.
Microbial corneal infection is the most serious and most common vision threatening complication of contact lens wear, which is believed to be strongly associated with contact lens cases. Such infections are being increasingly recognized as an important cause of morbidity and blindness and may even be life-threatening. While the cornea is believed to be the most common site for fungal eye infections, other parts of the eye such as the orbit, sclera, eyelids, and more may also be involved. Contact lens cases are recognized as a potential source of pathogens associated with corneal ulcers and according to Moorfields Eye Hospital, contact lens wear is the most prevalent risk factor for new cases of corneal ulcers. Contaminants isolated from contact lens associated corneal ulcers have often been shown to be the same as found in the patients contact lens case, thus providing evidence contaminated contact lens cases may be a replenishable source of pathogenic microbes. In the study ...
Monthly Disposable Contact Lenses - A discussion of monthly disposable contact lenses such as Air Optix Aqua, Air Optix Night & Day Aqua, Biofinity, F
Contact lenses are a great option (but not a total replacement) for eyeglass wearers. With the myriad of contact lenses on the market, Dr. Manalo examines and fits patients with the best lenses available. Depending on the unique characteristics of your eyes, there is a contact lens made for you. Keep in mind contact lenses require your eyes to be healthy at all times, otherwise contact lenses may not feel right and can lead to complications and in some cases, infection and vision loss. Special eye conditions, such as keratoconus, corneal ectasia and severe dry eye, may require the use of specialty contact lenses. Dr. Manalo can determine and fit the appropriate lens when indicated. Different types of specialty contact lenses include multifocal lenses, hybrid lenses and scleral lenses.. Contact lens options include:. ...
A method of treating contact lens intolerance includes the steps of: providing a solution comprising an essential fatty acid, and applying the solution to a surface of the contact lens. Preferably, the essential fatty acid is an omega-3 fatty acid. The contact lens can be soaked in a container holding a supply of the solution, or the solution can be applied via a dropper directly to the contact lens in the eye or while on a surface or in a container. The contact lens can have the solution applied during manufacture as a part of the contact lens material or as a solution saturated into the contact lens.
Motivation is often the most important factor in determining whether your son or daughter will be a successful contact lens wearer. If you wear contact lenses yourself and love them, that still doesnt mean they are the right choice for your child. Some children like wearing glasses and have no desire wear contact lenses.. We can usually tell at your childs diagnostic contact lens examination if they really want to wear contact lenses. If it appears that they would rather stay in glasses, we will certainly respect their decision - and you should, too. Sometimes its just a matter of timing. Often, a child may feel they dont want contacts, but a year or two later, they do. Theres always time to make that decision.. ...
There are an estimated 125 million contact lens wearers across the world, and the majority experience few complications; however, it is well known that contact lens wear is a risk factor for microbial keratitis (infection of the cornea of the eye). Owing to the ubiquitous distribution of micro-organisms, it is extremely di cult to prevent them from colonizing contact lens storage cases. Bacteria, fungi and protozoa have all been found in contact lens storage cases; these micro-organisms can adhere to the contact lens, which then acts as a vector to transport the microbes on to the surface of the eye. Bacteria such as Pseudomonas aeruginosa, fungi such as Fusarium solani and the protazoan parasite Acanthamoeba-to name but a few-can cause infection of the corneal epithelial cells, which, if untreated, can lead to blindness. It is therefore essential that wearers clean and disinfect their contact lenses and storage cases e ectively to minimize the risk of infection. ...
People who use monthly or bi-monthly contact lenses are more likely to need rewetting drops. It comes in a convenient multi-dose bottle and is safe to use as often as needed. Shop Refresh Contacts Contact Lens Comfort Drops - 0.4 Fl. Eye Strain. Dry eye is prevalent In Denver, Colorado, and is constantly discussed during our eye exams.It is typically exacerbated by contact lens wear because the lenses disrupt the tear film on the surface of the eye, causing your natural tears to break down sooner. Free shipping for many products! Itch Relief. and their effective, instant soothing effect. Get free shipping at $35 and view promotions and reviews for Refresh Contacts Contact Lens Comfort Moisture Drops … We checked 8 distinguished contact lens wearers eye drops over the past year. Consult your eye care practitioner to identify the lens you wear. item 4 Refresh Contacts Contact Lens Comfort Drops Sterile 10mL (0.4 fl oz) Exp 11/2022 - Refresh Contacts Contact Lens Comfort Drops Sterile 10mL (0.4 ...
Can you wear contact lenses even when your eyes are tired - Can you wear contact lenses even when your eyes are tired? Sparingly. You can wear contacts when your eyes are tired but you should give them a break and time to breathe by using your glasses, instead. Your eyes need exposure to oxygen, too, and regularly removing your contacts and cleaning them well will help keep your eyes healthy.
Whether you already wear contact lenses or are considering them, this section serves as a primer. Facts and statistics about contact lens wearers, pointers for safe and successful use of contact lenses, and contact lenses and cosmetics are just a few of the topics covered here.. Getting started right with your contact lenses involves going to a doctor who provides full-service care. This includes a thorough eye examination, an evaluation of your suitability for contact lens wear, the lenses, necessary lens care kits, individual instructions for wear and care and unlimited follow-up visits over a specified time.. ...
The present invention provides a method for making colored silicone hydrogel contact lenses. The method of the invention comprises the steps of: (a) applying a color coat to at least a portion of at least one of molding surfaces of a lens mold with an ink, wherein the ink comprises at least one colorant, a binder polymer, an adhesion promoter, and optionally a diluent, wherein the binder polymer is a copolymerization product of a polymerizable mixture including (I) at least one hydrophilic vinylic monomer; (II) at least one functionalizing vinylic monomer containing at least one functional group selected from the group consisting of hydroxyl group -OH, amino group -NHR (wherein R is hydrogen or C|sub|1|/sub|, to C|sub|8|/sub| alkyl), carboxylic group -COON, epoxy group, amide group -CONHR, and combinations thereof; (III) at least one silicone-containing vinylic monomer or macromer, and (IV) optionally one or more components selected from the group consisting of a polymerization initiator, a chain
CDC, in close collaboration with partners, has organized Contact Lens Health Week as a strategy to increase public awareness and promote healthy contact lens wear and care. August 19-23, 2019 marks the sixth annual Contact Lens Health Week. This years campaign theme is Contact Lens Health Starts with You to encourage eye care providers and patients alike to take an active role in ensuring and caring for their eye health. Increased awareness about the importance of proper contact lens hygiene can encourage contact lens wearers to adopt healthy habits that can reduce their chances of getting an eye infection. This years health messages cover three key areas:. ...
Types of Contact Lenses. There are different types of contact lenses wear to suit the purpose of use. Daily disposables are convenient and ideal for children or young people starting out on lens-wear. These are also good for those who would like to wear lenses occasionally for sport or for social use.. Monthly or 2 weekly replacement contact lenses are available for a wide range of prescriptions and are breathable and comfortable to the eyes. Certain soft contact lenses also have a built in UV protection and are there a good way of protecting you eyes from the suns UV rays.. Direct Debit Memberships. All our contact lenses paid for monthly include our aftercare package. This offers unlimited contact lens appointments and discounts on any spectacles or purchases in store. ...
1. De Waard PW, IJspeert JK, van den Berg TJ, et al. Intraocular light scattering in age-related cataracts. Invest Ophthalmol. 1992;33(3):618-25.. 2. Efron N, Morgan PB, Cameron ID, et al. Oxygen permeability and water content of silicone hydrogel contact lens materials. Optom Vis Sci. 2007;84(4):328-37.. 3. Cole CJ, Vogt U. Medical uses of cosmetic colored contact lenses. Eye Contact Lens. 2006;32(4):203-6.. 4. Spaeth GL, Idowu O, Seligsohn A, et al. The effects of iridotomy size and position on symptoms following laser peripheral iridotomy. J Glaucoma. 2005;14(5):364-7.. 5. Jonsson AC, Burstedt MS, Golovleva I, et al. Tinted contact lenses in Bothnia dystrophy. Acta Ophthalmol Scand. 2007;85(5):534-9.. 6. Michaelides M, Hunt DM, Moore AT. The cone dysfunction syndromes. Br J Ophthalmol. 2004;88(2):291-7.. 7. Schornack MM, Brown WL, Siemsen DW. The use of tinted contact lenses in the management of achromatopsia. Optometry. 2007;78(1):17-22.. 8. Park WL, Sunness JS. Red contact lenses for ...
Peace out in style with our Yin Yang Contact Lenses . These white and black contact lenses feature a classic yin yang symbol with a black border. They completely cover up your natural eye color and make a wonderful statement. You can wear these contact lenses with a regular outfit or to complete a Halloween costume. Our Colored Contact Lenses are a great choice for costumes and parties. They combine bright fashion designs with exceptional quality and comfort. These colored contact lenses feel great, thanks to their high water content and oxygen permeability. Comfortable to wear and easy to clean, these colored contacts make it easy to create a stunning Halloween costume look. Lenses are sold in pairs Non-prescription colored contact lenses Last for 1 year once opened - replace after this time period Includes full contact lens care instructions Includes lens case for easy storage Next day shipping on black and white contact lenses
Acuvue Advance for Astigmatism Contact Lenses at the LOWEST PRICE GUARANTEED. Take advantage of our discounted prices (as low as 32.49) and purchase your Acuvue Advance for Astigmatism contact lenses online now. We deliver to all European countries. Acuvue Advance for Astigmatism contact lenses (toric lenses) are manufactured by Johnson & Johnson.
1 Day Acuvue Define 30 Pack contact lenses only $40.00 per box with free 2nd Day shipping anywhere in the U.S. 1-Day Acuvue® Define® 30 Pack contact lenses manufactured with Lacreon® Technology offering a unique and convenient option to wear colored contact lenses with the same practical advantage that you enjoy with your preferred one day lens! The lens is available in five beautiful colors, Natural Sparkle, Natural Shimmer, Natural Shine, Accent Style and Vivid Style.
"Therapeutic Uses of Hydrophilic Contact Lenses". Am J Ophthal. 69 (2): 252-9. doi:10.1016/0002-9394(70)91287-0. PMID 5414007. ... With Tony Gasset, Kaufman studied therapeutic soft contact lens (SCL) use to promote corneal healing and reduce pain. They also ... He has been president of the Association for Research in Vision and Ophthalmology, the Contact Lens Association of ... co-developed with Tony Gasset the use of bandage contact lenses; and was involved in the first laser vision photorefractive ...
Hydrophilic polymers for soft contact lenses. YTEC devised novel homopolymer and copolymer systems for soft contact lens ... to exhibit a high degree of water containment in the swollen state and yet be sufficiently stable to form a precision lens to ...
Wichterle thought pHEMA might be a suitable material for contact lenses and gained his first patent for soft contact lenses. On ... 1959 WICHTERLE, O.; LÍM, D. (9 January 1960). "Hydrophilic Gels for Biological Use". Nature. 185 (4706): 117-118. doi:10.1038/ ... Research into contact eye lenses at the Institute of Chemical Technology came to an end. The International Symposium on ... "CONTACT LENS HISTORY". andrewgasson.co.uk. Archived from the original (Microsoft FrontPage 4.0) on 29 January 2015. CS1 maint: ...
Dreifus M.; Herben T.; Lim D.; Wichterle, O. Sbornik lekar sky (1960), 62 212-8. On the problem of contact lenses. Wichterle, O ... Otto Wichterle and Drahoslav Lim, "Process for producing shaped articles from three-dimensional hydrophilic high polymers", US ... During 1970 to 1974 he worked in Palo Alto, California, improving contact lenses materials and technology. When he returned to ... At the latter he led a team of scientists who researched tinting technologies for hydrogel contact lenses, materials for ...
... making it useful as a predictor of a person's tolerance of hydrophilic soft contact lenses. Contact lens intolerance can also ... Ravazzoni L, Ghini C, Macri A, Rolando M (1998). "Forecasting of hydrophilic contact lens tolerance by means of tear ferning ... If cosmesis is a concern, or if there is discomfort in contact lens use, surgical excision may be done. Occasionally, a ... result from the elevation of the peripheral edge of the contact lens if it overlies a pinguecula. The plural form of pinguecula ...
... FOR CONTACTS - For Silicone Hydrogel and Hydrophilic lenses Used primarily for comfort during the day, moistening upon ... These drops are also not advised for contact lens wearers because decreased blood flow to the surface of the eye will further ... If swallowed, get medical help or contact a Poison Control Center right away. - under Warnings "Woman pleads guilty to killing ... blood pressure Possible coma Seizures and tremors Death Anyone ingesting Visine should get medical attention or contact a ...
Hydrophilic Silicone Composition and Method Contact lens http://aboutjoints.com/patientinfo/topics/tjrlastfrontier/ ... of pioneering silicone-based contact lenses that became the basis of the oxygen-permeable technology of modern contact lenses. ...
It is used in the manufacture of soft contact lenses, and is considered a low hydration hydrogel of nonionic polymer. Zia ... Polymacon is a non-proprietary (i.e., generic) term for a hydrophilic polymer of 2-hydroxyethylmethacrylate (HEMA) cross-linked ...
Because of this property, it was one of the first materials to be successfully used in the manufacture of soft contact lenses. ... when the polymer is subjected to water it will swell due to the molecule's hydrophilic pendant group. Depending on the physical ...
Wichterle thought pHEMA might be a suitable material for a contact lens and gained his first patent for soft contact lenses. By ... Wichterle, O.; Lím, D. (1960). "Hydrophilic Gels for Biological Use". Nature. 185 (4706): 117-8. Bibcode:1960Natur.185..117W. ... Pure pHEMA yields lenses that are too thick for sufficient oxygen to diffuse through, so all contact lenses that are pHEMA ... Kyle, Robert A.; Steensma, David P.; Shampo, Marc A. (2016-03-01). "Otto Wichterle-Inventor of the First Soft Contact Lenses". ...
... contact lenses MeSH E07.532.276.360 - contact lenses, hydrophilic MeSH E07.532.276.360.220 - contact lenses, extended-wear MeSH ... lenses, intraocular MeSH E07.695.510 - maxillofacial prosthesis MeSH E07.695.510.500 - mandibular prosthesis MeSH E07.695.540 ... E07.532.300 - eyeglasses MeSH E07.532.460 - lenses, intraocular MeSH E07.565.500 - quantum dots MeSH E07.605.500 - metered dose ...
Another technique incorporates internal rewetting agents to make the lens surface hydrophilic. A third process uses longer ... reality contact lens Bionic contact lens Eyeglass prescription Fungal contamination of contact lenses List of soft contact lens ... the FDA labels non-corrective cosmetic contact lenses as decorative contact lenses. Like any contact lens, cosmetic lenses ... Play media Contact lens, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ...
Like toric contact lenses, toric IOLs have different powers in different meridians of the lens, and they must be positioned on ... hydrophilic acrylate and collamer. Polymethylmethacrylate (PMMA) was the first material to be used successfully in intraocular ... They have special vaulting so as not to be in contact with the normal lens. The main complication with older versions was a ... PIOLs are sometimes referred to as an 'implantable contact lenses' (ICLs). As with other IOLs, PIOLs can be either spheric or ...
Another technique incorporates internal rewetting agents to make the lens surface hydrophilic. A third process uses longer ... "Soft Contact Lens Care Products".. *^ www.feelgoodcontacts.com. "Caring For Contact Lenses - Feel Good Contact Lenses". www. ... the FDA labels non-corrective cosmetic contact lenses as decorative contact lenses. Like any contact lens, cosmetic lenses ... "International Contact Lens Prescribing in 2010". Contact Lens Spectrum. October 2011. *^ Agarwal, R. K. (1969), Contact Lens ...
Historically, hard contact lenses were frequently made of this material. Soft contact lenses are often made of a related ... a substance with both hydrophobic and hydrophilic groups needs to be added to facilitate the suspension. Modern furniture ... In particular, acrylic-type contact lenses are useful for cataract surgery in patients that have recurrent ocular inflammation ... and it is used in the manufacture of rigid intraocular lenses which are implanted in the eye when the original lens has been ...
These 'water-loving' soft contact lens materials are categorized as "Conventional Hydrophilic Material Groups ("-filcon"): Note ... "Contact Lens Materials: Advocating a New Lens Group". Contact Lens Spectrum. Contact Lens Spectrum - February 2005 Issue. ... CS1 maint: discouraged parameter (link) "Contact Lens Spectrum - Soft Contact Lenses". www.clspectrum.com. Contact Lens ... Soft contact lenses may be easier to adjust to and are more comfortable than rigid gas permeable lenses. Newer soft lens ...
Hybrid Contact Lens Management. Contact Lens Spectrum: "Archived copy". Archived from the original on 23 December 2010. ... or hydrophilic lenses and, most recently, silicone hydrogel lenses. A soft lens has a tendency to conform to the conical shape ... Contact Lens & Anterior Eye: The Journal of the British Contact Lens Association. 33 (4): 157-166, quiz 205. doi:10.1016/j.clae ... Contact Lens & Anterior Eye. 22 (3): 87-90. doi:10.1016/S1367-0484(99)80044-7. PMID 16303411. "SoftPerm Hybrid Contact Lenses ...
It can also be found in multi-purpose contact lens cleaning solutions, where its purpose there is to help remove lipid films ... Poloxamer 407 is a hydrophilic non-ionic surfactant of the more general class of copolymers known as poloxamers. Poloxamer 407 ... from the lens. It can also be found in some mouthwashes. There is a research ongoing for using poloxamer 407 for aligning ... is a triblock copolymer consisting of a central hydrophobic block of polypropylene glycol flanked by two hydrophilic blocks of ...
... monomer is differentially downregulated in mild to severe aqueous deficient dry eye, and in contact lens-related dry ... The most C-terminal alpha helix is amphipathic with hydrophobic and hydrophilic residues on opposite faces. The hydrophobic ... A growing number of studies suggest that lacritin may be differentially downregulated in dry eye, including contact lens- ... Nichols JJ, Green-Church KB (December 2009). "Mass spectrometry-based proteomic analyses in contact lens-related dry eye". ...
"A polymer-based technique to remove pollutants from soft contact lenses". Contact Lens and Anterior Eye. arXiv:2005.08732. doi: ... This treatment renders the PDMS surface hydrophilic, allowing water to wet it. The oxidized surface can be further ... It has also been at least proposed for use in contact lenses. Silicone breast implants are made out of a PDMS elastomer shell, ... "Silicone polymer contact lens compositions and methods of use Patent US 20050288196". Retrieved 17 July 2015. Evaluation of ...
Disposable diapers where they absorb urine, or in sanitary napkins Contact lenses (silicone hydrogels, polyacrylamides, ... A hydrogel is a network of crosslinked polymer chains that are hydrophilic, sometimes found as a colloidal gel in which water ... A three-dimensional solid results from the hydrophilic polymer chains being held together by cross-links. The crosslinks which ... acrylate polymers and copolymers with an abundance of hydrophilic groups, and natural proteins such as collagen, gelatin and ...
Avoiding the use of benzalkonium chloride solutions while contact lenses are in place is discussed in the literature. Due to ... The diagram represents suggested pathways of the biodegradation of BAC for both the hydrophobic and the hydrophilic regions of ... Polyaminopropyl biguanide - an alternative preservative for contact lens solutions Ethylenediaminetetraacetic acid Triclosan ... Contact Lens". Clinical and Experimental Optometry. 59 (8): 277. doi:10.1111/j.1444-0938.1976.tb01445.x. M Akers, " ...
From Soft Contact Lenses and Implants to Self-Assembled Nanomaterials. J. Polym. Sci: Part A: Polym. Chem. 47, 5929-5946 (2009 ... pursued polymeric hydrogels to find a suitable in vivo option as a vehicle for drug delivery and his lab chose the hydrophilic ... he was mentored by professors Drahoslav Lim and Otto Wichterle who both contributed to the creation of contact lenses. Kopecek ...
Eye and Contact Lens. 36 (3): 170-176. doi:10.1097/ICL.0b013e3181db352f. PMID 20351555. S2CID 1751728. Weiner, Myra L.; Lois A ... HPC has a combination of hydrophobic and hydrophilic groups, so it has a lower critical solution temperature (LCST) at 45 °C. ...
Hydrogels, such as soft contact lenses for example, are likewise inaccessible for the standard arrangement; the captive bubble ... can further lead to the investigation in the hydrophilic and hydrophobic properties of the surface. Through studies, a higher ... the observed contact angle usually underestimated the intrinsic contact angle, while the observed contact angle in the captive ... Theoretically, the contact angle equals to the value of the local intrinsic contact angle with the assumption of a negligible ...
Soft, opaque contact lenses may be used to improve cosmesis and reduce the perception of double vision. Iridodialyses are ... Gashau, AG; Anand, A; Chawdhary, S (2006). "Hydrophilic acrylic intraocular lens exchange: Five-year experience". Journal of ... Behndig, A. (2002). "Results with a modified method for scleral suturing of intraocular lenses". Acta Ophthalmologica ...
The first is contact applanation biometry. This technique requires placing an ultrasound probe on the central cornea. While ... ISBN 978-0-323-04332-8. Toric Intraocular lens power calculator - http://aurolab.com/auroflextoric-hydrophilic-iol.asp Dr. Hill ... The aim of an accurate intraocular lens power calculation is to provide an intraocular lens (IOL) that fits the specific needs ... All lens constants are estimates, to begin with. To obtain the best possible results, it is imperative that these constants be ...
... hydrophilic only, 2002) and Bioclean (2nd generation, both photoactive and hydrophilic, 2003) by Saint-Gobain. The Bioclean ... When the glass is wet by rain or other water, hydrophilicity reduces contact angles to very low values, causing the water to ... precluding applications on lenses and windows, and fragile materials. The second class of self-cleaning surfaces are ... Hydrophilic coatings based on titania (titanium dioxide), however, have an additional property: they can chemically break down ...
Some proteins naturally form crystalline arrays, like aquaporin in the lens of the eye. In the process of protein ... The two solutions come into contact in a reagent chamber, both at their maximum concentrations, initiating spontaneous ... in which the hydrophilic groups are usually facing outwards to the solution to form a hydration shell to the solvent (water). ... crystallization is the process of formation of a regular array of individual protein molecules stabilized by crystal contacts. ...
Contact Lens & Anterior Eye : The Journal of the British Contact Lens Association. 42 (4): 350-358. doi:10.1016/j.clae.2019.04. ... The swelling capacity of mucus stems from the bottlebrush structure of mucin within which hydrophilic segments provide a large ...
Concentrator photovoltaics (CPV) and high concentrator photovoltaic (HCPV) systems use optical lenses or curved mirrors to ... hydrophobic or hydrophilic) on soiling or snow losses.[31] (Although in heavy snow environments with severe ground interference ... In addition, a CPV system requires optical lenses or mirrors and sometimes a cooling system. ...
The DNA of a prokaryotic cell consists of a single circular chromosome that is in direct contact with the cytoplasm. The ... A simple microscope is a microscope with only one biconvex lens, rather like a magnifying glass). He saw many small box like ... partly hydrophobic and partly hydrophilic). Hence, the layer is called a phospholipid bilayer, or sometimes a fluid mosaic ... 1632-1723: Antonie van Leeuwenhoek taught himself to make lenses, constructed basic optical microscopes and drew protozoa, such ...
In 1772, the French scientist Antoine Lavoisier used a lens to concentrate the rays of the sun on a diamond in an atmosphere of ... However, when diamond surfaces are chemically modified with certain ions, they are expected to become so hydrophilic that they ...
Liquid micro-lens array activated by selective electrowetting on lithium niobate substrates S. Grilli, L. Miccio, V. Vespini, A ... Many such devices feature hydrophobic barriers on hydrophilic paper that passively transport aqueous solutions to outlets where ... without any physical contact. This technology focuses acoustic energy into a fluid sample in order to eject droplets as small ...
Historically, hard contact lenses were frequently made of this material. Soft contact lenses are often made of a related ... a substance with both hydrophobic and hydrophilic groups needs to be added to facilitate the suspension. ... In particular, acrylic-type contact lenses are useful for cataract surgery in patients that have recurrent ocular inflammation ... and it is used in the manufacture of rigid intraocular lenses which are implanted in the eye when the original lens has been ...
In contact with acidic environment, the hair's somewhat scaly surface tightens up, as the hydrogen bonds between the keratin ... Hair conditioners therefore usually contain cationic surfactants, which don't wash out completely, because their hydrophilic ... Circle contact lens. *Eyelash extensions. *Eyelid glue. *Eye liner. *Eye shadow. *Kohl ...
The DNA of a prokaryotic cell consists of a single chromosome that is in direct contact with the cytoplasm. The nuclear region ... A simple microscope is a microscope with only one biconvex lens, rather like a magnifying glass). He saw many small box like ... partly hydrophobic and partly hydrophilic). Hence, the layer is called a phospholipid bilayer, or sometimes a fluid mosaic ... 1632-1723: Antonie van Leeuwenhoek teaches himself to make lenses, constructs basic optical microscopes and draws protozoa, ...
Split Adjuvant and Closed Patch Testing for Contact Allergens F2148-18 Practice for Evaluation of Delayed Contact ... Specification for Classification and Marking of Single-Lens Scopes for Use with Archery Bows F1755M-96(2018) Specification for ... Specification for Aircraft Electric Propulsion Systems F3240-19e1 Practice for Installation of Seamless Molded Hydrophilic ... Mechanical Contact), Fiber-Optic F2072-14 Test Method for Hosedown of a Membrane Switch F2073-14 Test Method for Non- ...
The UPW forms a puddle between the lens and the wafer, improving NA, and the UPW must be extremely pure. POU filtration is used ... With the large volume of UPW, which comes into contact with each wafer, particle deposition on the wafer readily occurs. Once ... hydrophilic and hydrophobic; and dissolved gases. UPW and commonly used term deionized (DI) water are not the same. In addition ... The ultrapure water is by definition extremely low in contamination, but once it makes contact with the wafer surface it ...
Attachment systems in these organisms have similar structures at their terminal elements of contact, known as setae. Such ... Surface tension biomimetics are being researched for technologies such as hydrophobic or hydrophilic coatings and ... significantly reducing lens flare. This imitates the structure of a moth's eye. Notable figures such as the Wright Brothers and ...
October 2001). "Bacillus cereus keratitis associated with contact lens wear". Ophthalmology. 108 (10): 1830-1834. doi:10.1016/ ... thus creating pores with hydrophilic interiors. The effect is loss of cellular membrane potential and eventually cell death. ...
Membrane contactors allow gas transfer between a liquid and gas. They are made with hollow fiber membranes that are porous, ... A nonporous hydrophilic membrane is used. Only charged species can enter the nano-sized pores of the membrane. Non-polar ... Immersion lithography places a layer of pure water between the projection lens and the wafer. Any contaminant within the water ... If water vapor is generated at very high temperatures, it must be cooled before coming in contact with the furnace and wafers. ...
The polymers are particularly useful in preparing hydrophilic contact lenses of high burst strength and extended wear ... There is prepared a hydrophilic water swellable, water insoluble copolymer of (1) at least 35% of a hydroxy (C2 -C4 -alkyl)-2- ... High-hydration contact lens. US4752627 *. Aug 13, 1986. Jun 21, 1988. Michael Froix. Clouding-resistant contact lens ... A hydrophilic polymer suitable for use as an extended wear soft contact lens must have high oxygen permeability and good ...
Long-term effects of hydrophilic contact lenses on myopia.. Andreo LK1. ... Myopic patients aged 14 to 19 years were divided randomly into two groups: those that wore contact lenses full time and those ... There appears to be no effect of soft contact lens wear on the progression of myopia. ...
Toyo Contact Lens Company, Limited. High toughness synthetic high polymers for soft contact lenses and a process for ... and a satisfactory contact lens was made. The contact lens made was left in water and a physiological saline solution for a ... Hydrophilic synthetic high polymers for soft contact lenses and a process for manufacturing the same. US 3813447 A ... United States Patent 3,813,447 HYDROPHILIC SYNTHETIC HIGH POLYMERS FOR SOFT CONTACT LENSES AND A PROCESS FOR MANUFACTURING THE ...
... and thereafter irradiating the contact lens with ultraviolet light. ... A contact lens is made hydrophilic by contacting the lens with a treating solution containing a hydrophilic monomer, at least ... A contact lens is made hydrophilic by contacting the lens with a treating solution containing a hydrophilic monomer, at least ... US4892402A - Method for making contact lens hydrophilic - Google Patents. Method for making contact lens hydrophilic Download ...
Preferably, the contact lens are prepared by molding the prepolymer into a contact lens mold, prior to polymerization, to ... The hydrated polymer gel is used to obtain a contact lens which resists nonspecific protein adsorption. ... biocompatible contact lens characterized by a surface which resists nonspecific protein adsorption. The method involves forming ... Polymer-based soft contact lenses are not new. U.S. Pat. No. 4,259,467 (Keogh et al.) discloses hydrophilic contact lenses ...
... biologically inert contact lens with the capability of transporting oxygen sufficiently to meet the requirements of the human ... The contact lens according to claim 1 wherein only one of Z.sub.1 -Z.sub.7 is a hydrophilic sidechain.. 16. Th contact lens ... When the term "hydrophilic soft contact lens" is used herein, it is meant that the soft contact lens surface will not repel ... There are commercially available both hydrophobic and hydrophilic contact lenses. The hydrophobic contact lenses available are ...
Effect of conventional hard and hydrophilic soft contact lenses on the corneal epithelium. Comparative study in tissue culture. ... Effect of conventional hard and hydrophilic soft contact lenses on the corneal epithelium. Comparative study in tissue culture. ... Contact BMJ. Online: ISSN 1468-2079Print: ISSN 0007-1161. Copyright © 2017 by the BMJ Publishing Group Ltd. All rights reserved ...
Cytokine deposits were demonstrated on the surface and inside soft contact lenses, which may contribute to contact lens-induced ... Cytokine deposits were demonstrated on the surface and inside soft contact lenses, which may contribute to contact lens-induced ... Cytokine deposits were demonstrated on the surface and inside soft contact lenses, which may contribute to contact lens-induced ... Cytokine deposits were demonstrated on the surface and inside soft contact lenses, which may contribute to contact lens-induced ...
Method of making polymeric contact lens. US3966847 *. 4 Ene 1974. 29 Jun 1976. Maurice Seiderman. Contact lens from hydrophilic ... Polymer compositions for contact lenses. US5264161 *. 5 Sep 1991. 23 Nov 1993. Bausch & Lomb Incorporated. Method of using ... Polymer compositions for contact lenses. US5274008 *. 14 Ene 1993. 28 Dic 1993. Bausch & Lomb Incorporated. Mold materials for ... Polymer compositions for contact lenses. US5010883 *. 8 May 1989. 30 Abr 1991. Smith & Nephew Associated Companies Plc. ...
Contact Lens also covers dry eye disease, MGD, infections, toxicity of drops and contact lens care solutions, topography, ... Blood Constituents and Hydrophilic Lens Coating. Morgan, J. F.; Titus, C. O.; Mills, J. A.; More ... Permeability of Dissolved Oxygen Through Contact Lenses I. Cellulose Acetate Butyrate. Refojo, Miguel F.; Holly, Frank J.; ... Contact and Intraocular Lens Medical Journal. 3(4):10-15, October-December 1977. ...
1 Color Contacts Products from Global $1 Color Contacts Suppliers and $1 Color Contacts Factory,Importer,Exporter at Alibaba. ... Tags: $1 Color Contact , Soft Hydrophilic Contact Lens , Best Seller Contact Lenses ... 1 Dollars Contacts Three Tone Colored Eye Contact Lens 3 Tone Color Contact Lenses , $1 Cheap Colored Contact Lenses Discount ... Realcon Super Natural 1 year contact lens cheap price contact lenses color contact lens ...
Contact Lens also covers dry eye disease, MGD, infections, toxicity of drops and contact lens care solutions, topography, ... Lipid Deposits on Hydrophilic and Rigid Gas Permeable Contact Lenses. Bontempo, Andrew R.; Rapp, Jerry ... The Annualized Incidence of Contact Lens Induced Keratitis in Sweden and its Relation to Lens Type and Wear Schedule: Results ... Lower Incidence of Contact Lens Related Ulcers in Sweden: Is Patient Education a Key?. Donshik, Peter C. ...
Another technique incorporates internal rewetting agents to make the lens surface hydrophilic. A third process uses longer ... "Soft Contact Lens Care Products".. *^ www.feelgoodcontacts.com. "Caring For Contact Lenses - Feel Good Contact Lenses". www. ... the FDA labels non-corrective cosmetic contact lenses as decorative contact lenses. Like any contact lens, cosmetic lenses ... "International Contact Lens Prescribing in 2010". Contact Lens Spectrum. October 2011. *^ Agarwal, R. K. (1969), Contact Lens ...
Contact Lens also covers dry eye disease, MGD, infections, toxicity of drops and contact lens care solutions, topography, ... Comparison of Ocular Aberrations in Two Hydrophobic and Hydrophilic Intraocular Lenses. Jafarzadehpur, Ebrahim; Hashemi, Hassan ... Prominent Decrease of Tear Meniscus Height With Contact Lens Wear and Efficacy of Eye Drop Instillation. Nagahara, Yukiko; Koh ... Diffusion of Antimicrobials Across Silicone Hydrogel Contact Lenses. Zambelli, Alison M.; Brothers, Kimberly M.; Hunt, Kristin ...
Sterilizing hydrophilic contact lenses. US4327731 *. 7 Jul 1980. 4 May 1982. Powell Nelson B. Moisture indicator. ... In a hydrated hydrogel of hydrophilic polymer material, the hydrophilic polymer material is desirably present at a ... The hydrated hydrogel conveniently comprises hydrophilic polymer material. Suitable hydrophilic polymer materials include ... wherein the hydrophilic polymer material is present at a concentration of at least 1% by weight based on the total weight of ...
A number of hydrogels have been developed for use as contact lenses. These hydrogels keep a layer of water at the surface of ... The hydrophilic polymer can be a hydrophilic diol, a hydrophilic diamine or a combination thereof. The hydrophilic diol can be ... b) a hydrophilic polymer which is a member selected from the group consisting of a hydrophilic polymer diol, a hydrophilic ... b) a hydrophilic polymer which is a member selected from the group consisting of a hydrophilic polymer diol, a hydrophilic ...
Hydrophilic contact lenses for aphakia.. Carter DB, Brucker D.. Am J Optom Arch Am Acad Optom. 1973 Apr;50(4):316-9. No ... Loss of cell-matrix contact increases hypoxia-inducible factor-dependent transcriptional activity in glioma cells. ...
... derived from a crosslinking monomeric component in an amount effective to facilitate returning a deformed intraocular lens made ... New high refractive index polymeric compositions and foldable intraocular lenses made from such compositions are disclosed. In ... Hydrophilic surface modification of contact lenses. US20080221675 *. 22 May 2008. 11 Sep 2008. Alcon, Inc.. Dual Function UV- ... The intraocular lens of claim 8 wherein said hydrophilic monomeric component is selected from the group consisting of N-vinyl ...
Find high quality Crazy Eyes Contact Lenses Suppliers on Alibaba. ... Alibaba offers 44 Crazy Eyes Contact Lenses Suppliers, and ... Crazy Eyes Contact Lenses Manufacturers, Distributors, Factories, Companies. There are 20 OEM, 19 ODM, 3 Self Patent. ... Soft Hydrophilic Contact Lenses. Total Revenue: US$2.5 Million - US$5 Million ... Magic Eye Color Contact Lens , Natural Looking Color Contact Lenses , Look Beauty Contact Lenses , Eye Contact Lenses Supplier ...
sterilizer, soft-lens, thermal, battery-powered Soft (hydrophilic) contact lens care pro... ... sterilizer, soft-lens, thermal, ac-powered Soft (hydrophilic) contact lens care pro... ... products, contact lens care, rigid gas permeable Rigid gas permeable contact lens care pr... ... lens, contact (rigid gas permeable), extended wear Rigid gas permeable contact lens ...
Hydrophilic contact lens made from polysiloxanes containing hydrophilic sidechains. US4260725 *. 10 Dec 1979. 7 Apr 1981. ... Silicone-containing contact lens polymers, oxygen permeable contact lenses and methods for making these lenses and treating ... Contact lens material. US4820747 *. 7 Sep 1988. 11 Apr 1989. Ocular Technologies, Inc.. Gas permeable contact lens and method ... Contact lenses. US20040213827 *. 11 Dec 2003. 28 Oct 2004. Enns John B.. Antimicrobial contact lenses and methods for their ...
This oxidation is followed by exposure to atmospheric air, until there is a substantial reduction in the air-water contact ... This process also provides lower coefficients of friction for general polymeric products in contact with water and aqueous ... Surfaces of hydrophobic polymers are treated to reduce their friction resistance characteristics when in contact with an ... Silicone contact lens with hydrophilic surface treatment. US4297187 *. 5 Oct 1979. 27 Oct 1981. Toray Industries, Inc.. Surface ...
Contact Lenses, Hydrophilic * Humans * Infant * Lens Capsule, Crystalline / surgery* * Lens, Crystalline / surgery* ... Posterior lens capsulectomy during primary cataract surgery in children Ophthalmology. 1983 Apr;90(4):344-5. doi: 10.1016/s0161 ... It is the best method to avoid development of amblyopia resulting from gradual posterior lens capsule opacification. However, ... cystoid macular edema is reported to occur more frequently with this approach as opposed to leaving the posterior lens capsule ...
Another technique incorporates internal rewetting agents to make the lens surface hydrophilic. A third process uses longer ... reality contact lens Bionic contact lens Eyeglass prescription Fungal contamination of contact lenses List of soft contact lens ... the FDA labels non-corrective cosmetic contact lenses as decorative contact lenses. Like any contact lens, cosmetic lenses ... Play media Contact lens, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ...
Microbial keratitis is a potentially binding disease that is rare in normal eyes unless associated with contact lens (CL) wear ... Contact Lenses / classification * Contact Lenses, Extended-Wear * Contact Lenses, Hydrophilic / adverse effects ... Contact lenses and other risk factors in microbial keratitis Lancet. 1991 Sep 14;338(8768):650-3. doi: 10.1016/0140-6736(91) ... Microbial keratitis is a potentially binding disease that is rare in normal eyes unless associated with contact lens (CL) wear ...
For soft (hydrophilic) contact lenses. Not for cleaning or disinfection. Sterile. Questions or comments? Call us toll free at 1 ... Clear Care Rinse & Go Solution can be used for rinsing soft (hydrophilic) contact lenses after cleaning and disinfection. After ... Clear Care Rinse & Go Solution will not disinfect your contact lenses. Tamper Evident Seal: Do not use if the security seal is ... Precautions: Never reuse or top off old solution left in your lens case for storing lenses as this will diminish its ...
For soft (hydrophilic) contact lenses. Not for cleaning or disinfection. Questions or comments? Call us toll-free at 1-800-757- ... After disinfection, lenses may be stored in Clear Care Rinse & Go Solution for up to 30 days in the lens case. Lenses stored ... After disinfection, lenses may be stored in Clear Care Rinse & Go Solution for up to 30 days in the lens case. Lenses stored ... Solution will not disinfect your contact lenses. Precautions: Never reuse or top off old solution left in your lens case for ...
"Therapeutic Uses of Hydrophilic Contact Lenses". Am J Ophthal. 69 (2): 252-9. doi:10.1016/0002-9394(70)91287-0. PMID 5414007. ... With Tony Gasset, Kaufman studied therapeutic soft contact lens (SCL) use to promote corneal healing and reduce pain. They also ... He has been president of the Association for Research in Vision and Ophthalmology, the Contact Lens Association of ... co-developed with Tony Gasset the use of bandage contact lenses; and was involved in the first laser vision photorefractive ...
... a patient developed opacification of soft contact lenses used on the same side. Calcilm was demonstrated within the contact ... Contact Lenses, Hydrophilic*. Female. Humans. Lacrimal Apparatus Diseases / therapy*. Middle Aged. Optics and Photonics. Tears ... 19783466 - Toric lens orientation and visual acuity in non-standard conditions.. 12769156 - Rk4 (reverse-geometry) contact lens ... a patient developed opacification of soft contact lenses used on the same side. Calcilm was demonstrated within the contact ...
  • The polymers are particularly useful in preparing hydrophilic contact lenses of high burst strength and extended wear properties. (google.com)
  • Such lenses or the like manufactured from the synthetic high polymers of this invention are definitely superior in many respects to those known in the prior art. (google.com)
  • Recently, importance has been recognized on the supply of oxygen through contact lens for the metabolism of cornea, and the polymers containing silicon or fluorine have come to be used popularly as lens material because of their excellent oxygen permeability. (google.com)
  • This invention relates to novel hydrophilic polymers and processes of making same and has particular relation to such hydrophilic polymers in the form of casting syrups, friable solid foams and in powdered form, the latter form being particularly adapted as a carrier for medicinallyactive substances and for natural and synthetic flavors, essences, fragrances, spices, food colors, sweeteners, dyes and the like. (google.es)
  • It is known that said prior art shaped body, hydrophilic polymers prepared in an aqueous system are carriers for medicinally-active substances. (google.es)
  • In still another respect, the invention concerns contact polymers possess the optical clarity necessary for corrective lenses, they sufier from other characteristics which reduce their potential utility. (google.ca)
  • The hydrogel materials based on hydrophilic polymers such as polyhydroxyethylmethacrylate are soft and have poor durability. (google.ca)
  • Surfaces of hydrophobic polymers are treated to reduce their friction resistance characteristics when in contact with an aqueous environment by exposing the surfaces to an oxidation treatment, preferably by use of radio frequency glow discharge. (google.co.uk)
  • Soft, supple contact lenses made of plastic polymers which interact readily with water molecules. (bioportfolio.com)
  • Provided are surface modified contact lenses formed from one or more fumaric- or itaconic-containing prepolymers having reactive functionality that is complimentary to reactive hydrophilic polymers. (google.com.au)
  • Manufacturers were able to improve the hydrogel polymers used in contact lenses over the two decades after the FDA first approved hydrogel contact lenses in the US. (lens.com)
  • The improvement of hydrogel polymers led to silicone hydrogel contact lenses. (lens.com)
  • Soft contact lenses are manufactured from hydrophilic polymers (water-loving plastics). (clecontactlenses.com)
  • Hydrogels can be produced by physical, chemical, or radiation crosslinking of hydrophilic polymers. (dissertations.se)
  • A hydrophilic polymer suitable for use as an extended wear soft contact lens must have high oxygen permeability and good mechanical strength. (google.com)
  • The synthetic high polymer according to this invention is very hydrophilic and sticky, and endures a very precise machining operation. (google.com)
  • Accordingly, the synthetic high polymer according to this invention is highly suitable for the manufacture of contact lenses, artificial corneas, and optical lenses for medical use, for example, gonioscopes for examination of the eyes. (google.com)
  • 260857 2 Claims ABSTRACT OF THE DISCLOSURE The invention relates to the preparation of a hydrophilic cross-linked polymer which comprises admixing a water soluble polymerizable hydroxyalkyl monoester of a mono-olefinic monocarboxylic acid and a polymerizable diester of a mono-olefinic monocarboxylic acid in the presence of a linear polyamide. (google.es)
  • Heretofore, it has been necessary to prepare a solid or shaped body of the hydrophilic polymer and thereafter dissolve in the aqueous constituents of such shaped body the medicinal flavor, sweeteners, coloring agent and the like. (google.es)
  • 22 . The method according to claim 19 , wherein the amorphous hydrated hydrogel material further comprises a hydrophilic polymer material. (google.ca)
  • 23 . The method according to claim 22 , wherein the hydrophilic polymer material is selected from polyacrylates and methacrylates. (google.ca)
  • 24 . The method according to claim 22 , wherein the hydrophilic polymer material comprises poly 2-acrylamido-2-methylpropane sulphonic acid (poly AMPS) or salts thereof. (google.ca)
  • 25 . The method according to claim 22 , wherein the hydrophilic polymer material is present at a concentration of at least 1% by weight based on the total weight of the amorphous hydrated hydrogel material. (google.ca)
  • The hydrogels can be prepared from (a) a diisocyanate, (b) a hydrophilic polymer which is a hydrophilic diol, a hydrophilic diamine, or a combination thereof, and optionally, (c) a chain extender. (freepatentsonline.com)
  • 3. A method in accordance with claim 1, wherein said hydrophilic polymer is a poly(ethylene)glycol selected from the group consisting of PEG 600, PEG 2000, Jeffamine D-230, Jeffamine ED-600, Jeffamine ED-900 and Jeffamine D-2000. (freepatentsonline.com)
  • Further, a prosthesis used in mammals, including an intraocular lens, comprises a polymer core and at least a first biocompatible material, preferably having pendant terminal carboxylic acid or amine groups, covalently grafted to the polymer core by radio frequency plasma induction. (google.com.au)
  • We examine how strong and stretchable adhesion between hydrophilic and hydrophobic polymer networks can be achieved, how water can be retained in hydrogels and how to design hydrogels that resist fatigue under cyclic loads. (deepdyve.com)
  • They did not set out to create contact lenses, but by 1954 the team of Czech scientists had invented what is called a "hydrophilic" (for its affinity to water) gel, a polymer plastic that was suitable for eye implants. (encyclopedia.com)
  • The raw material for contact lenses is a plastic polymer. (encyclopedia.com)
  • Soft contact lenses are made of a polymer such as poly hydroxyethyl methacrylate (pHEMA) that has hydrophilic qualities, that is, it can soak up water and still retain its shape and optic functions. (encyclopedia.com)
  • Hydrogel contact lenses are made of a water-infused polymer known as hydrogel. (lens.com)
  • Silicone is a gel-like polymer that has a high degree of flexibility, making it a superb material for contact lenses. (lens.com)
  • In 1951, Czech chemist Otto Wichterle developed the first soft contact lens polymer made from hydrophilic hydroxyethyl methacrylate (HEMA). (2020mag.com)
  • The early lenses were made by filling small molds with the polymer, then allowed to harden. (2020mag.com)
  • Due to a high surface energy and an entropy-caused stabilizing effect of the hydrophilic polymer chains, our coatings prevent surfaces from adsorbing dirt from aequous solutions. (innovations-report.de)
  • Wettability of the lens surface is important in order to allow tears to fill the lens-corneal interspace. (google.com)
  • Effect of conventional hard and hydrophilic soft contact lenses on the corneal epithelium. (bmj.com)
  • Leonardo da Vinci is frequently credited with introducing the idea of contact lenses in his 1508 Codex of the eye, Manual D , [9] wherein he described a method of directly altering corneal power by either submerging the head in a bowl of water or wearing a water-filled glass hemisphere over the eye. (wikipedia.org)
  • Corneal Infections Associated with Sleeping in Contact Lenses - Six Cases, United States, 2016-2018. (bioportfolio.com)
  • Microorganisms, especially gram-negative bacteria, are considered to play a role in the etiology of certain corneal infiltrative events (CIEs) observed during soft contact lens wear. (asm.org)
  • In many events the offending microorganism is isolated from the corneal scrape and also from the contact lens ( 6 , 12 ). (asm.org)
  • Also, during contact lens acute red eye (CLARE) and corneal infiltrative events (CIEs), significant numbers of gram-negative bacteria such as P. aeruginosa , Serratia marcescens , and Haemophilus influenzae have been isolated from the contact lens ( 4 , 11 ). (asm.org)
  • In 1949, the first "corneal" lenses were developed. (wikipedia.org)
  • PMMA corneal lenses became the first contact lenses to have mass appeal through the 1960s, as lens designs became more sophisticated with improving manufacturing technology. (wikipedia.org)
  • With Tony Gasset, Kaufman studied therapeutic soft contact lens (SCL) use to promote corneal healing and reduce pain. (wikipedia.org)
  • Hard (corneal) lenses cover the pupil and part of the cornea. (encyclopedia.com)
  • Contact lens fitting over intrastromal corneal rings in a keratoconic patient. (clspectrum.com)
  • The use of therapeutic soft contact lenses in corneal disease. (clspectrum.com)
  • Applications of contact lens devices in the management of corneal disease. (clspectrum.com)
  • Many other models followed Fick's initial success, and in 1949, the first corneal rigid lenses were developed. (framesdirect.com)
  • 1 Brennan NA: Beyond Flux: Total Corneal Oxygen Consumption as an Index of Corneal Oxygenation During Contact Lens Wear. (coopervision.com)
  • The first plastic corneal lens was made by Kevin Touhy in 1948. (encyclopedia.com)
  • Touhy's first corneal lens had a diameter of 10.5 millimeters, and in 1954 Touhy reduced the diameter further to 9.5 millimeters, resulting in better wearability. (encyclopedia.com)
  • Silicone hydrogel's high oxygen permeability means contact lens wearers are less likely to suffer from corneal hypoxia or a lack of oxygen supply to the cornea. (lens.com)
  • Meanwhile, silicone hydrogel contact lenses' high oxygen permeability prevents wearers from suffering corneal hypoxia. (lens.com)
  • Hydrogels are commonly used materials in ophthalmic care as contact lenses, bandage lenses, corneal implants, and cornea regeneration scaffolds. (dissertations.se)
  • In conclusion, the vitamin E loaded silicone contact lens can provide continuous anesthetics release for about 1 7 days, depending on the method of drug loading in the lenses, and thus could be very useful for postoperative pain control after corneal surgery such as the photorefractive keratectomy (PRK) procedure for vision correction. (phys.org)
  • The topical application can be by using a corneal shield or lens. (freepatentsonline.com)
  • A water absorbing, soft, hydrophilic, flexible, hydrolytically stable, biologically inert contact lens with the capability of transporting oxygen sufficiently to meet the requirements of the human cornea comprising a polysiloxane which is .alpha. (patentgenius.com)
  • Descartes proposed another idea in 1636-a glass tube filled with liquid placed in direct contact with the cornea. (wikipedia.org)
  • Soft contact lenses worn on an extended-wear (EW) schedule are associated with infective and infiltrative conditions of the cornea. (asm.org)
  • However, the idea was impracticable, since the device was to be placed in direct contact with the cornea and thus would have made blinking impossible. (wikipedia.org)
  • These were much smaller than the original scleral lenses, as they sat only on the cornea rather than across all of the visible ocular surface, and could be worn up to 16 hours a day. (wikipedia.org)
  • contact lens Lens worn on the cornea to aid defective vision. (encyclopedia.com)
  • Soft (hydrophilic) lenses cover the whole cornea and are hydrated in saline solution. (encyclopedia.com)
  • 6. Sweeney DF: Clinical signs of hypoxia with high- Dk soft lens extended wear: is the cornea convinced? (clspectrum.com)
  • The thin plastic lens floats on a film of tears directly over the cornea. (encyclopedia.com)
  • DAILIES TOTAL1 ® water gradient contact lenses allow oxygen to flow freely through the lenses to reach the cornea (with oxygen transmissibility at 156 Dk/t), representing the highest oxygen transmissibility of any daily disposable contact lens on the market. (alcon.com)
  • Lasting lubricity The human adult eye blinks about 14,000 times per day 7 , meaning the eyelid slides over the front of the cornea (and the contact lenses) roughly once every six seconds. (alcon.com)
  • The outer layer of Alcon's DAILIES TOTAL1 ® water gradient contact lenses simulates the water content of the cornea and can maintain 100% lubricity even after fourteen hours' wear, providing breakthrough naked-eye comfort of the lens. (alcon.com)
  • Silicone hydrogel has high oxygen permeability, so silicone hydrogel contact lenses allow much more oxygen to pass through the lens and reach the cornea. (lens.com)
  • Compared to hydrogel contact lenses, silicone hydrogel enables five times more oxygen to reach the cornea. (lens.com)
  • But i also hear that the contacts may hurt your cornea. (firmoo.com)
  • The water-loving lens allowed more oxygen to pass through to the cornea. (2020mag.com)
  • [3] As of 2010 [update] , the average age of contact lens wearers globally was 31 years old, and two-thirds of wearers were female. (wikipedia.org)
  • Contact lens wearers can also wear sunglasses, goggles, or other eyewear of their choice without having to fit them with prescription lenses or worry about compatibility with glasses. (wikipedia.org)
  • This study is being conducted to evaluate Bausch & Lomb PureVision Multi-Focal contact lenses compared to the Bausch & Lomb SofLens59 contact lens when worn by adapted soft contact lens wearers on a daily wear basis. (bioportfolio.com)
  • However, contact lens wearers are at risk for contact le. (bioportfolio.com)
  • The population of soft contact lens wearers is increasing, thus the issues of feeling comfortable and contact lens-induced clinical symptoms are concerned. (bioportfolio.com)
  • Contact lens wearers complain of various types of contact lens discomfort (CLD), which may result in the discontinuation of contact lenses. (bioportfolio.com)
  • special soft lens lubricating drops also work well for wearers of those contacts. (framesdirect.com)
  • More recently, one-a-day contact lenses are gaining popularity among lens wearers. (encyclopedia.com)
  • According to survey data, 41% wearers of contact lenses have experienced discomfort such as dryness and redness 5 , of which 90% have chosen to endure silently instead of consulting eye care professionals and as high as 48% have stopped using contact lenses due to their poor sense of comfort. (alcon.com)
  • 6 As Professor Wang Haiying, Coordinator for the International Association of Contact Lens Educators (IACLE) in China put it, "Uncomfortable wearing experience is a shared trouble for wearers of contact lenses. (alcon.com)
  • Furthermore, not all contact lens wearers should wear silicone hydrogel contact lenses. (lens.com)
  • Hydrogel contact lenses also contain more water than their silicone hydrogel counterparts, making them ideal for contact lens wearers who suffer from dry eye syndrome. (lens.com)
  • They are designed to uniquely address end-of-day dryness and discomfort many contact lens wearers experience after age 40. (novartis.com)
  • Many contact lens wearers discontinue the use of contact lenses after age 40 due to dryness, discomfort and visual acuity issues. (novartis.com)
  • § 886.1405 - Ophthalmic trial lens set. (fda.gov)
  • § 886.1410 - Ophthalmic trial lens clip. (fda.gov)
  • § 886.1415 - Ophthalmic trial lens frame. (fda.gov)
  • Commercial silicone hydrogel contact lenses release most ophthalmic drugs including local anesthetics for only a few hours, which is not adequate. (phys.org)
  • This approach has been shown previously to be successful in extending the release durations for some common hydrophilic ophthalmic drugs. (phys.org)
  • Kruse, A. and T. Lofstrom , Clinical evaluation of a biocompatible daily disposable contact lens. (clspectrum.com)
  • Sensor: Soft, hydrophilic silicone disposable contact lens embedding a MEMS sensor and a telemetry microprocessor. (medgadget.com)
  • Daily disposable contact lens wear in myopic children. (osu.edu)
  • 1 Day Acuvue TruEye Contact Lenses are FIRST daily disposable contact lens made in breathable silicone hydrogel material. (eyecontacts.com.au)
  • Accordingly, it would be highly desirable to providea polymeric, material suitable for use in fabricating contact lenses having increased oxygen permeability, improved mechanical strength, and which is sufficiently rigid to permit precision machining and polishing. (google.ca)
  • Specifically formulated for fluoro silicone acrylate and silicone acrylate rigid gas permeable contact lenses, Boston One Step Liquid Enzymatic Cleaner is a simple and convenient way to effectively remove protein deposits from rigid gas permeable contact lenses on a weekly basis. (bausch.com)
  • A randomized trial of the effects of rigid contact lenses on myopia progression. (clspectrum.com)
  • Hard contacts, most often referred to as Rigid Gas Permeable (RGP) lenses, are made from a variety of silicone-acrylate combinations. (framesdirect.com)
  • Directions For storage of soft (hydrophilic), rigid gas permeable (RGP), or hard contact lenses during chemical disinfection. (safeway.com)
  • Variables affecting rigid contact lens comfort in the collaborative longitudinal evaluation of keratoconus (CLEK) study. (osu.edu)
  • Clear Care contact lens care solution is a convenient and highly effective hydrogen peroxide-based system for simultaneous cleaning, daily protein removal and disinfecting of soft (hydrophilic) and rigid gas permeable lenses as recommended by your eye care professional. (bjs.com)
  • Clear Conscience Multi-Purpose Contact Lens Solution is a sterile, isotonic solution for daily cleaning, rinsing, disinfecting, removing protein, and storing ALL types of contact lenses, including soft (hydrophilic) contact lenses (including silicone hydrogels), as well as rigid gas permeable (RGP) lenses. (healthmonthly.co.uk)
  • Clear Care (trademark of Novartis) Plus provides simultaneous cleaning, daily protein removal and disinfection of all types of contact lenses, including soft (hydrophilic), silicone hydrogel, and rigid gas permeable lenses. (safeway.com)
  • Ambroziak AM, Szaflik JP, Szaflik J. Therapeutic use of a silicone hydrogel contact lens in selected clinical cases. (clspectrum.com)
  • Clear Care Rinse & Go Solution can be used for rinsing soft (hydrophilic) contact lenses after cleaning and disinfection. (wegmans.com)
  • NO RUB LENS CARE DIRECTIONS: For the cleaning and disinfection of soft (hydrophilic) contact lenses replaced in 30 days or less. (giantfoodstores.com)
  • Essential steps for cleaning and disinfection: To ensure proper cleaning and disinfection of your lenses you must follow the instructions completely. (safeway.com)
  • Sterile solutions used to clean and disinfect contact lenses. (bioportfolio.com)
  • Discard solution from the lens case and immediately and thoroughly clean interior of lens case with fresh, sterile disinfecting solution. (bausch.com)
  • Cleaning should be followed by rinsing with fresh, sterile disinfecting solutions (never use water) and wiping the lens case with a fresh, clean tissue is recommended. (bausch.com)
  • Clear Conscience Multi-Purpose Solution is a sterile solution for daily cleaning, rinsing, disinfecting and storing soft (hydrophilic) contact lenses. (herbspro.com)
  • 1. Fill right lens-well 2/3 full with fresh sterile disinfecting solution, immerse one lens and screw cap shut until tight using only fresh contact lens disinfecting solution each time you store your lenses. (safeway.com)
  • Before wearing, rinse each lens thoroughly in sterile solution as recommended for use with your lenses. (safeway.com)
  • Remove your lens(es) immediately and flush your eyes with a large amount of water or sterile saline. (vons.com)
  • Clear Care Plus Cleaning & Disinfecting Solution (Clear Care Plus) is a Sterile Solution Containing Micro-Filtered Hydrogen Peroxide 3%, Sodium Chloride (0.79%, Stabilized with Phosphonic Acid, a Phosphate Buffered System, Pluronic (Pluronic is a Trademark of BASF) 17r4 (a Cleaning Agent), and Hydraglyde Moisture Matrix (EOBO-21 (a Trademark of Novartis)-Polyoxyethylene-Polyoxybutylene, Especially for Silicone Hydrogel Soft Lenses). (safeway.com)
  • If you want to rinse your lenses, use sterile saline. (safeway.com)
  • Soft contacts are made from hydrophilic (water-absorbing) plastic. (framesdirect.com)
  • Also, the CS may penetrate into gas-permeable lenses, so you end up with a persistent non-persistent agent (sorry, training aid). (arrse.co.uk)
  • Gas-permeable lenses are a compromise between the hard and soft, allowing greater comfort than hard lenses but less chance of tearing than soft lenses. (encyclopedia.com)
  • More particularly the invention relates to a method for imparting good wettability by water to hard contact lens which is normally poor in surface wettability by water. (google.com)
  • The contact lens with poor surface hydrophilicity, i.e., poor wettability with tear liquid has the problem that it could make improper correction of eyesight. (google.com)
  • Clariti 1 day is a hydrophilic lens with optimal wettability. (eyecontacts.com.au)
  • Contact lenses made of hydrogel is softer, affords a higher level of wettability and oxygen transmissibility, while silicone hydrogel is easier to wear for being better shaped. (alcon.com)
  • The objective of this study is to quantify differences in nighttime driving performance between the Bausch & Lomb PureVision™ aspheric contact lenses and a conventional spherical contact. (bioportfolio.com)
  • Therapeutic use of Bausch & Lomb PureVision contact lenses. (clspectrum.com)
  • veterinary eye care, veterinary ophthalmology, bandage lenses for animals, corrective lenses for dogs and cats Acrivet, Inc. is now fully integrated under Bausch + Lomb. (bausch.com)
  • See the latest lens & lens care videos from Bausch + Lomb. (bausch.com)
  • Introducing Bausch + Lomb ULTRA contact lenses for Presbyopia. (lens.com)
  • Harness the comfort and breathability of Bausch + Lomb's ULTRA contacts, now available for those with age-related farsightedness. (lens.com)
  • Thanks to advanced MoistureSeal technology and an innovative 3-Zone Progressive Design, Bausch + Lomb ULTRA for Presbyopia contact lenses offer all-day comfort and stellar vision at any distance. (lens.com)
  • Whether you spend your days staring at a computer screen or driving long distances, Bausch + Lomb ULTRA for Presbyopia provides hydrating, breathable comfort for up to 16 hours all at an affordable price through Lens.com. (lens.com)
  • At the Screening/Dispensing Visit, approximately one-half of the participants will be randomized to receive Bausch + Lomb investigational samfilcon A soft contact lenses (Test) and approximately one-half of the subjects will be randomized to receive Bausch + Lomb PureVision soft contact lenses (Control). (clinicaltrials.gov)
  • Participants will wear Bausch + Lomb samfilcon A soft contact lens in each eye on a 7-day extended daily wear basis for a period of 12 months. (clinicaltrials.gov)
  • The Bausch and Lomb PureVision family of contact lenses is made from balafilcon A, an innovative silicone hydrogel material patented by Bausch and Lomb, with enhanced optical designs and surface properties that provide crisp vision, comfort and health . (bizrate.com)
  • A contact lens is made hydrophilic by contacting the lens with a treating solution containing a hydrophilic monomer, at least one photosensitizer selected from aromatic ketones or quinones, and a sovlent, and thereafter irradiating the contact lens with ultraviolet light. (google.com)
  • Said methods comprising copolymerization with hydrophilic monomers, however, have the defect that because of the contradictory tendency of the proportion of hydrophilic monomer in composition and the oxygen permeability of contact lens, an attempt to impart sufficient hydrophilicity to the lens surface may cause excessive lowering of oxygen permeability while an attempt to maintain high oxygen permeability may result in poor hydrophilicity of the lens surface. (google.com)
  • After disinfection, lenses may be stored in Clear Care Rinse & Go Solution for up to 30 days in the lens case. (wegmans.com)
  • Allow your lenses to soak overnight or for at least six hours, for disinfection, cleaning and protein removal. (giantfoodstores.com)
  • Never reuse, or top off old solution left in your case as solution reuse reduces effective lens disinfection and could lead to severe infection, vision loss, or blindness. (safeway.com)
  • OPTI-FREE EXPRESS solution is formulated for use in disinfection and storage of lenses for up to 30 days after disinfection. (intekom.com)
  • OPTI-FREE EXPRESS solution is indicated for the daily cleaning, rinsing, disinfection, rewetting and storage of all soft contact lenses. (intekom.com)
  • People choose to wear contact lenses for many reasons. (wikipedia.org)
  • [6] Others wear contact lenses for functional or optical reasons. (wikipedia.org)
  • A 3-year prospective study of the clinical performance of daily disposable contact lenses compared with frequent replacement and conventional daily wear contact lenses. (clspectrum.com)
  • Who should not wear contact lenses? (acuvue.com)
  • Toric lenses are a soft lens that correct your astigmatism and give you the comfort you never thought you would find. (clecontactlenses.com)
  • Look into contact lenses for dry eyes , which lock in moisture while encouraging oxygen transmission. (framesdirect.com)
  • Smart Silicone chemistry shapes silicone into a network of channels that are much more efficient at delivering oxygen through the lens, so less raw silicon is needed for optimal oxygen permeability. (coopervision.com)
  • Smart Silicone chemistry transports oxygen so efficiently that it requires less raw silicon (only 4.4% content), leaving more space for hydrophilic material. (coopervision.com)
  • The oxygen-carrying channels created with Smart Silicone chemistry consist of long-chain silicone molecules and highly compatible, hydrophilic material. (coopervision.com)
  • This allows these microscopic channels to remain tiny-smaller than the wavelength of light-and to be evenly distributed throughout the lens, resulting in efficient movement of oxygen molecules with less overall silicone content. (coopervision.com)
  • as a silicon hydrogel lens it allows a good flow of oxygen to the eye. (eyecontacts.com.au)
  • Scleral lenses deprived the eye of oxygen, and many of these earlier lenses slipped out of place or popped out of the eye, and were often, oddly enough, difficult to remove. (encyclopedia.com)
  • In order to combine the strengths and achieve a higher level of oxygen transmissibility and lubricity, Alcon's researchers decided to start from material structure and develop a lens which has different water contents from its core to its surface. (alcon.com)
  • The core of our water gradient contact lenses adopts silica-based material with high oxygen permeability, which keeps water content at 33% so that the lens will not absorb water from the eyes in order to maintain high water content. (alcon.com)
  • When wearing contact lenses without enough oxygen, eyes can experience such symptoms as redness, blurred vision, and dryness. (alcon.com)
  • Another benefit of high oxygen permeability is that silicone hydrogel contact lenses are much more suitable for extended or continuous wear. (lens.com)
  • Although many people prefer to wear soft contact lenses because the lens oxygen to pass through to the eye, soft contact lenses have their own disadvantage. (firmoo.com)
  • Hydrophilic silicon-hydrogel contact lenses contain microchannels that enable the transport of solutions and oxygen to the EBFC. (nanowerk.com)
  • Flexible wear lenses are thinner or have a higher water content, allowing more oxygen to pass to the eye. (clecontactlenses.com)
  • For an application like gas permeable contact lenses, the application calls for a product that has a high oxygen permeability, and "that is the reason for success of the silicone compounds for contact lenses," Franssen said. (rubbernews.com)
  • Cruelty-free, thimerosal-free, chlorhexidine-free Contact lenses. (herbspro.com)
  • Opti-Free Express Rewetting Drops, an effective thimerosal-free formula, is especially formulated for use while wearing daily, extended wear and disposable soft (hydrophilic) contact lenses. (aclens.com)
  • Finally, a Multi-Purpose Contact Lens Solution that is cruelty-free, thimerosal-free, chlorhexidine-free, FDA approved, and sterilized by filtration without the use of radiation. (healthmonthly.co.uk)
  • Clear Care Rinse & Go Solution will not disinfect your contact lenses. (wegmans.com)
  • Clear Care (trademark of Novartis) Rinse & Go (trademark of Novartis) Solution will not disinfect your contact lenses. (wegmans.com)
  • STEP 1: RINSE Thoroughly rinse each side of the lens for 5 seconds with fresh CareOne Multi-Purpose Solution. (giantfoodstores.com)
  • Rinse each side of the lenses for 5 seconds with fresh CareOne Multi-Purpose Solution prior to insertion. (giantfoodstores.com)
  • Thoroughly rinse your lenses with fresh CareOne Multi-Purpose Solution. (giantfoodstores.com)
  • If any debris remains on contact lenses, rinse with CareOne Multi-Purpose Solution prior to insertion. (giantfoodstores.com)
  • After removing lenses from the lens case, rub and rinse lenses for approximately five (5) seconds with any Boston Conditioning Solution to ensure that the enzymatic cleaner is thoroughly rinsed off the lenses. (bausch.com)
  • Never rinse your lenses with Signature Care Hydrogen Peroxide Cleaning and Disinfecting Solution prior to insertion. (vons.com)
  • Directions Directions for Use: Always wash and rinse your hands before handling your lenses. (vons.com)
  • Wash, rinse and dry your hands thoroughly before handling your lenses. (vons.com)
  • 2. Thoroughly rinse each side of your right lens for 5 seconds with fresh Signature Care Hydrogen Peroxide Cleaning and Disinfecting Solution. (vons.com)
  • Always wash and rinse the hands before handling contact lenses. (intekom.com)
  • When using a new lens case, rinse the case with fresh OPTI-FREE EXPRESS solution before use to remove any debris. (intekom.com)
  • Rinse each side of the lens thoroughly with OPTI-FREE EXPRESS solution. (intekom.com)
  • Before wear, rinse each side of the lens thoroughly to remove any debris on the lens. (intekom.com)
  • Thoroughly rinse both surfaces of the lens. (intekom.com)
  • You may use this product to rinse debris or daily cleaners from the surface of the lens or to use as a diluent for enzymatic lens cleaning products and to rinse lenses before wearing. (intekom.com)
  • After removing the lenses from the lens case, always discard old solution and rinse the lens case with fresh OPTI-FREE EXPRESS solution and allow it to air dry. (intekom.com)
  • Use to clean and rinse contact lens. (healthmonthly.co.uk)
  • Never rinse your contact lenses with Clear Care (trademark of Novartis) Plus before you put them in your eyes. (safeway.com)
  • The present invention relates to novel hydrophilic copolymers and soft contact lenses made therefrom. (google.com)
  • The present invention relates to a method for making contact lens hydrophilic. (google.com)
  • Montero J, Sparholt J, Mely R. Retrospective case series of therapeutic applications of a lotrafilcon A silicone hydrogel soft contact lens. (clspectrum.com)
  • Bifocal/multifocal lenses contain two or more kinds of correction by providing the wearer with simultaneous distant and near vision. (clecontactlenses.com)
  • bifocal lens one having two segments with different refracting power, the upper for far vision and the lower for near vision. (thefreedictionary.com)
  • omnifocal lens one whose power increases continuously and regularly in a downward direction, avoiding the discontinuity in field and power inherent in bifocal and trifocal lenses . (thefreedictionary.com)
  • Microbial keratitis is a potentially binding disease that is rare in normal eyes unless associated with contact lens (CL) wear. (nih.gov)
  • Of CIEs, events of microbial keratitis, contact lens acute red eye, and asymptomatic infiltrative keratitis were associated with lens colonization with gram-negative bacteria or S. pneumoniae . (asm.org)
  • Infectious keratitis with contact lens wear is caused predominantly by gram-negative bacteria, with Pseudomonas aeruginosa being the leading cause of lens-related infections ( 17 ). (asm.org)
  • Management of an unusual case of keratitis mucosa with hydrophilic contact lenses and N-acetylcysteine. (medscape.com)
  • 3. The contact lens according to claim 1 wherein X is selected from the group consisting of ##STR115## wherein n.sub.26 is an integer from 1 to about 10, ##STR116## wherein n.sub.27 is an integer from 1 to 10, ##STR117## wherein n.sub.28 is aninteger from 1 to about 10 and ##STR118## wherein n.sub.29 is an integer from 0 to about 10. (patentgenius.com)
  • 6. The contact lens according to claim 1 wherein Y.sub.1 is methyl and Y.sub.2 is phenyl. (patentgenius.com)
  • 7. The contact lens according to claim 1 wherein Y.sub.1 and Y.sub.2 are methyls. (patentgenius.com)
  • 8. The contact lens according to claim 1 wherein at least one but not all of Z.sub.1 through ##STR122## wherein ##STR123## and n.sub.32 equals 1. (patentgenius.com)
  • 9. The contact lens according to claim 1 wherein only one of Z.sub.1, Z.sub.2, Z.sub.5 and Z.sub.6 is a hydrophilic sidechain. (patentgenius.com)
  • 2. The intraocular lens of claim 1 wherein the homopolymers of said first monomeric component have a substantial degree of rigidity. (google.co.uk)
  • 6. The intraocular lens of claim 1 wherein said first constituent is a major amount by weight of said copolymer, and said first constituent and said second constituent together are at least about 80 % by weight of said copolymer. (google.co.uk)
  • 7. The intraocular lens of claim 1 wherein neither said second monomeric component nor said third monomeric component include any aryl-containing groups. (google.co.uk)
  • 8. The intraocular lens of claim 1 wherein said copolymer further includes a fourth constituent derived from a hydrophilic monomeric component other than said first, second and third monomeric components, said fourth constituent being present in an amount effective to reduce the tackiness of said copolymer relative to a substantially identical copolymer without said fourth constituent. (google.co.uk)
  • 9. The intraocular lens of claim 1 wherein each of said first, second and third monomeric components includes at least one functional group containing carbon-carbon unsaturation. (google.co.uk)
  • 7 . The method of claim 1 wherein the medical device formed is selected from the group consisting of heart valves, intraocular lenses, contact lenses, intrauterine devices, vessel substitutes, artificial ureters and artificial breast tissue. (google.com.au)
  • Biomedics Contact Lenses are soft comfortable silicon hydrogel lenses that provide excellent vision correction. (eyecontacts.com.au)
  • Comparison of multifocal and monovision soft contact lens corrections in patients with low-astigmatic presbyopia. (osu.edu)
  • 1 DAY ACUVUE MOIST Brand MULTIFOCAL Contact Lenses provide the best vision in all light and at any distance. (eyecontacts.com.au)
  • 1 DAY ACUVUE MOIST MULTIFOCAL Contact Lenses are suitable for close up and distance vision focusing. (eyecontacts.com.au)
  • DAILIES Total1 Multifocal Water Gradient Daily Disposable Contact Lenses give you the comfort of a cushion of moisture. (eyecontacts.com.au)
  • Proclear multifocal contact lenses address both presbyopia and dryness. (eyecontacts.com.au)
  • Proclear 1 day multifocal lenses are the perfect choice for disposable use and related dryness. (eyecontacts.com.au)
  • Dailies Total1® Multifocal contact lenses provide a seamless visual experience offering an alternative to bifocals or reading glasses. (novartis.com)
  • Basel, July 14, 2016 - Alcon, the global leader in eye care and a division of Novartis, introduces Dailies Total1 Multifocal contact lenses for people with presbyopia. (novartis.com)
  • This innovative multifocal lens provides both seamless distant, intermediate and near vision, and the outstanding comfort of the Dailies Total1 water gradient lens technology. (novartis.com)
  • 1],[4]-[6] Dailies Total1 Multifocal contact lenses use Alcon's Precision Profile(TM) lens design, a design also included in Alcon's Air Optix® Aqua and Dailies Aqual Comfort Plus® multifocal contact lenses. (novartis.com)
  • With Dailies Total1 Multifocal, Alcon has designed a unique contact lens that answers to the increased need for comfort and the expectation of a seamless visual experience of people with presbyopia. (novartis.com)
  • Dailies Total1 Multifocal contact lenses are commercially available in Australia, Canada, United States and Switzerland as of July 27 and are expected to be available in various EU countries by September 1. (novartis.com)
  • Dailies Total1 ® Multifocal contact lenses are designed for people with presbyopia and are intended to be used on a daily disposable basis. (novartis.com)
  • In most markets, Dailies Total1 Multifocal contact lenses are medical devices that must be prescribed by an eye care professional. (novartis.com)
  • however, there are many treatment options for presbyopia including bifocals, reading glasses, and multifocal contact lenses. (novartis.com)
  • The foregoing release contains forward-looking statements that can be identified by words such as "launches," "introduces," "expected," or similar terms, or by express or implied discussions regarding potential marketing approvals for Dailies Total1 Multifocal contact lenses, or regarding potential future revenues from Dailies Total1 Multifocal contact lenses, Air Optix Aqua Multifocal contact lenses, Dailies AquaComfort Plus Multifocal contact lenses, and the other products in Alcon's multifocal contact lens portfolio. (novartis.com)
  • This oxidation is followed by exposure to atmospheric air, until there is a substantial reduction in the air-water contact angle of the surfaces. (google.co.uk)
  • A two piece contact lens mold having a pair of blunt, continuous mating surfaces extending around the periphery of the mold cavity is disclosed. (google.es)
  • No. 4,209,289 discloses a mold having continuous mating surfaces with the parting line at the junction of the lens edge and anterior lens surface. (google.es)
  • The radii of surfaces 3 and 11 are selected to provide a chosen power and base curve in the lens product well known to those skilled in the contact lens art. (google.es)
  • Two contact lenses with reflections on blue surfaces. (lens.com)
  • The objective of this study is to evaluate the performance of the PureVision Contact Lens compared to Acuvue Oasys Contact lens and O2Optix Contact lens when worn on a daily wear basis. (bioportfolio.com)
  • Efficacy of continuous wear PureVision contact lenses for therapeutic use. (clspectrum.com)
  • Alcon recommends that you replace your lens case on a frequent basis. (intekom.com)
  • Alcon Opti-Free Replenish Rewetting drops moisturize and protect your contacts from particles, dryness, and protein build-up that can cause discomfort and irritation. (aclens.com)
  • Shanghai, August 19, 2015 - Alcon, the global leader in eye care, today formally announced the launch of its new daily disposable lens, DAILIES TOTAL1 ® water gradient contact lenses, ushering in a new era of contactless eye comfort. (alcon.com)
  • In 1998, Ciba Vision (now known as ALCON) introduced the first silicone hydrogel contact lenses in Mexico. (lens.com)
  • Cytokine deposits were demonstrated on the surface and inside soft contact lenses, which may contribute to contact lens-induced damage of the ocular surface. (elsevier.com)
  • Efficacy of Contact Lens Care Solutions in Removing Cholesterol Deposits From Silicone Hydrogel Contact Lenses. (bioportfolio.com)
  • To determine the efficacy of multipurpose solutions (MPSs) on the removal of cholesterol deposits from silicone hydrogel (SH) contact lens materials using an in vitro model. (bioportfolio.com)
  • Reduces the adherence of and helps remove protein deposits which can impair the wearing comfort of GP lenses. (bausch.com)
  • Contact lens deposits and spoilage: identification and management. (medscape.com)
  • OPTI-FREE EXPRESS solution cleans soft (hydrophilic) lenses by loosening and removing accumulations of deposits and debris from the lenses. (intekom.com)
  • Removes protein deposits and reduces lipid deposition for silicone hydrogel and soft contact lenses. (bizrate.com)
  • Wichterle O, Lim D (1960) Hydrophilic gels for biological use. (springer.com)
  • L. E. Janoff, "The consequence of temperature change on hydrophilic lens base curve in gels of varying water content," International Contact Lens Clinic , vol. 9, pp. 228-232, 1982. (hindawi.com)
  • In 1959, Czech chemists Otto Wichterle and Drahoslav Lím published a paper entitled "Hydrophilic Gels for Biological Use" in the journal Nature. (lens.com)
  • Tolerance of a soft lens by the ocular environment is affected by water content, shape, or geometry, thickness and edge quality. (google.com)
  • Lenses, generally made of plastic or silicone, that are implanted into the eye in front of the natural EYE LENS, by the IRIS, to improve VISION, OCULAR. (bioportfolio.com)
  • During asymptomatic lens wear, gram-positive bacteria were isolated most frequently and were usually normal external ocular microbiota. (asm.org)
  • Lenses are colonized mainly by low numbers of external ocular microbiota. (asm.org)
  • Contact lenses are ocular prosthetic devices used by over 150 million people worldwide, and they can be worn to correct vision or for cosmetic or therapeutic reasons. (wikipedia.org)
  • Although they can provide good ocular health, they are not as comfortable initially as soft lenses. (clecontactlenses.com)
  • The Dailies Total1 water gradient technology reduces end-of-day dryness, [4],[5] as the water content approaches nearly 100% at the outermost surface of the lens. (novartis.com)
  • Contact lenses are considered medical devices and can be worn to correct vision , or for cosmetic or therapeutic reasons. (wikipedia.org)
  • Contact lenses, when worn and cared for properly, are a safe and effective form of vision correction used by an estimated 45 million Americans. (bioportfolio.com)
  • Hydrophilic contact lenses worn for an extended period or permanently. (bioportfolio.com)
  • Lenses designed to be worn on the front surface of the eyeball. (bioportfolio.com)
  • citation needed] Large and unwieldy, Fick's lens could be worn only for a couple of hours at a time. (wikipedia.org)
  • Unfortunately, Fick's lenses were large and unwieldy and could only be worn for a few short hours at a time. (framesdirect.com)
  • The contact lens is a device worn in the eye to correct vision, although some people wear colored contact lens to enhance or change their eye color. (encyclopedia.com)
  • Contacts are usually worn during the day and taken out every night for cleaning. (encyclopedia.com)
  • These contacts are worn for only one day and thrown away, eliminating the hassle of cleaning them every night. (encyclopedia.com)
  • These lenses are intended to be worn for most waking hours and removed for sleeping. (clecontactlenses.com)
  • Daily wear lenses are worn during the day and must be removed at bedtime. (clecontactlenses.com)
  • I have worn contacts for years and never had this problem. (lens.com)
  • The lenses are to be worn overnight for up to six consecutive nights per week. (clinicaltrials.gov)
  • The size of the contact lens market is likely to grow due to the increasing occurrence of eye-related conditions such as astigmatism , hyperopia and myopia . (wikipedia.org)
  • For those of you with astigmatism who thought you couldn t wear soft contact lenses there are now lenses for you. (clecontactlenses.com)
  • CareOne Multi-Purpose Solution cleans, rinses, disinfects, removes protein and stores soft (hydrophilic) contact lenses. (giantfoodstores.com)
  • Effects of protein, mucin, and human tears on adherence of Pseudomonas aeruginosa to hydrophilic contact lenses. (asm.org)
  • This special formula contains a patented RLM-100, which helps prevent protein deposit build-up on soft (hydrophilic) lenses. (aclens.com)
  • Inspired by the biology of your eyes, Biotrue® Multi-Purpose Solution conditions, cleans, disinfects, rinses and removes protein from soft contact lenses, including silicone hydrogel lenses. (bizrate.com)
  • If discomfort persists, immediately remove lens and contact your eye care professional. (medshopexpress.com)
  • If your eye doctor has prescribed contact lenses for you, you should not wear them if you have an eye infection, or experience eye discomfort, excessive tearing, vision changes, redness or other eye problems. (acuvue.com)
  • If eye discomfort, excessive tearing, vision changes or redness of the eye should be experienced, immediately remove lenses and promptly contact an eye care practitioner as the problem could become more serious. (intekom.com)
  • If minor irritation, discomfort or blurring occurs while you are wearing your contact lenses, place one or two drops of OPTI-FREE EXPRESS solution directly on the eye and blink two or three times. (intekom.com)
  • Alcon's DAILIES TOTAL1 ® water gradient contact lens provides exceptional comfort even after a full day of wear, eliminating any feeling of discomfort. (alcon.com)
  • The surface of the lens should be smooth in order not to affect the normal precorneal tear film and the superficial epithelial layer. (google.com)
  • citation needed] Although Louis J. Girard invented a scleral contact lens in 1887, it was German ophthalmologist Adolf Gaston Eugen Fick who in 1888 fabricated the first successful afocal scleral contact lens. (wikipedia.org)
  • citation needed] August Müller of Kiel, Germany, corrected his own severe myopia with a more convenient blown-glass scleral contact lens of his own manufacture in 1888. (wikipedia.org)
  • What happens when someone who needs medically necessary scleral contact lenses loses the dexterity to insert and remove them? (2020mag.com)
  • Long-term effects of hydrophilic contact lenses on myopia. (nih.gov)
  • There appears to be no effect of soft contact lens wear on the progression of myopia. (nih.gov)
  • Nearsightedness ( myopia ) occurs when the refractive power of the lens is too strong or the eyeball is too long, so that the image is focused in front of the retina. (thefreedictionary.com)
  • as the tension is relaxed the lens becomes more spherical in shape and hence more convex. (thefreedictionary.com)
  • Contact and Intraocular Lens Medical Journal. (lww.com)
  • 4. The intraocular lens of claim 1 which is sized and adapted to be deformed for insertion into a mammalian eye. (google.co.uk)
  • § 886.3600 - Intraocular lens. (fda.gov)
  • § 886.4300 - Intraocular lens guide. (fda.gov)
  • Refractive outcome of silicon oil removal and intraocular lens implantation using laser interpherometry. (noorvision.com)
  • There is prepared a hydrophilic water swellable, water insoluble copolymer of (1) at least 35% of a hydroxy (C2 -C4 -alkyl)-2-alkenoate, (2) 30 to 60% of a 2-alkenamide or an N, N-di (C1 -C6 -alkyl)2-alkenamide, (3) 5 to 20% of R --OR1 --x Z where R is C1 -C6 alkyl, R1 is C2 -C4 alkylene, x is an integer. (google.com)
  • Masked comparison of silicone hydrogel lotrafilcon A and etafilcon A extended-wear bandage contact lenses after photorefractive keratectomy. (clspectrum.com)
  • Efficacy of 2 types of silicone hydrogel bandage contact lenses after photorefractive keratectomy. (clspectrum.com)
  • Schrader S, Wedel T, Moll R, Gerrling G. Combination of serum eye drops with hydrogel bandage contact lenses in the treatment of persistent epithelial defects. (clspectrum.com)
  • The researchers say that, in the future, these lenses could serve as bandage contact lenses after PRK surgery while also delivering necessary pain medications. (phys.org)
  • The development of polymethyl methacrylate (PMMA) in the 1930s paved the way for the manufacture of plastic scleral lenses. (wikipedia.org)
  • § 886.1385 - Polymethylmethacrylate (PMMA) diagnostic contact lens. (fda.gov)
  • Hard contact lenses are made of some variant of polymethyl methacrylate (PMMA). (encyclopedia.com)