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Early visual experience shapes the representation of auditory space in the forebrain gaze fields of the barn owl. (1/443)
Auditory spatial information is processed in parallel forebrain and midbrain pathways. Sensory experience early in life has been shown to exert a powerful influence on the representation of auditory space in the midbrain space-processing pathway. The goal of this study was to determine whether early experience also shapes the representation of auditory space in the forebrain. Owls were raised wearing prismatic spectacles that shifted the visual field in the horizontal plane. This manipulation altered the relationship between interaural time differences (ITDs), the principal cue used for azimuthal localization, and locations of auditory stimuli in the visual field. Extracellular recordings were used to characterize ITD tuning in the auditory archistriatum (AAr), a subdivision of the forebrain gaze fields, in normal and prism-reared owls. Prism rearing altered the representation of ITD in the AAr. In prism-reared owls, unit tuning for ITD was shifted in the adaptive direction, according to the direction of the optical displacement imposed by the spectacles. Changes in ITD tuning involved the acquisition of unit responses to adaptive ITD values and, to a lesser extent, the elimination of responses to nonadaptive (previously normal) ITD values. Shifts in ITD tuning in the AAr were similar to shifts in ITD tuning observed in the optic tectum of the same owls. This experience-based adjustment of binaural tuning in the AAr helps to maintain mutual registry between the forebrain and midbrain representations of auditory space and may help to ensure consistent behavioral responses to auditory stimuli. (+info)The effects of spectacle wear in infancy on eye growth and refractive error in the marmoset (Callithrix jacchus). (2/443)
We made a comprehensive study, involving observations on 45 marmosets, of the effects on ocular growth and refraction of wearing spectacles from the ages of 4-8 weeks. This period was within the period early in life when the eye grows rapidly and refraction changes from hyperopia to its adult value of modest myopia. In one series of experiments we studied the effect of lenses of powers -8, -4, +4 and +8D fitted monocularly. In another series of experiments we studied the effect of lenses of equal and opposite powers fitted binocularly, with the two eyes alternately occluded, so as to give an incentive to use both eyes, and in particular to accommodate, for at least part of each day, through the negative lens. The vitreous chamber of eyes that wore negative lenses of -4D or -8D, combined with alternate occlusion, elongated more rapidly than that of the fellow eye (negative lens eye-positive lens eye, 0.21 +/- 0.03 mm (S.E.M.), P < 0.01 and 0.25 +/- 0.06 mm, P < 0.05, respectively) and became relatively more myopic (2.8 +/- 0.26D, P < 0.01 and 2.4 +/- 0.61D, P < 0.05 respectively). Eyes that wore -4D lenses monocularly elongated more rapidly and became myopic than fellow eyes. Eyes that wore +4D or +8D lenses were less strongly affected: animals that wore +8D lenses monocularly (without alternate occlusion) developed a slight relative hyperopia (0.99 +/- 0.21D, P < 0.01), with the more hyperopic eyes also slightly shorter (0.09 +/- 0.05 mm) than their fellow eyes, but eyes wearing +4D lenses were not significantly different from their fellow eyes. Animals that wore -8D lenses monocularly (without alternate occlusion) developed a slight relative hyperopia after three weeks of lens-wear (0.85 +/- 0.26D, P < 0.05). These were the only eyes that responded in a non-compensatory direction to the optical challenge of spectacle wear, and we interpret this effect as one due to visual deprivation. After the removal of lenses, the degree of anisometropia slowly diminished in those groups of animals in which it had been induced, but in the three groups in which the largest effects had been produced by lens-wear the overall mean anisometropia (0.68 +/- 0.24D, P < 0.01) and vitreous chamber depth (VCD) discrepancy (0.09 +/- 0.03 mm, P < 0.01) were still significant at the end of the experiments, when the animals were 273 days old. The reduction of anisometropia in these groups was associated with an increase in the rate of elongation of the vitreous chamber in the eyes that had previously grown normally i.e. the less myopic eyes grew more rapidly than their fellow eyes: in the seven weeks following lens-wear these eyes became more myopic and longer than normal eyes (refraction P < 0.001; VCD P < 0.001). Control experiments showed that occlusion of one eye for 50% of the day had no effect on eye growth and refraction, and therefore that alternate occlusion itself had no effect. (+info)Rehabilitation of children with cataracts. (3/443)
Over a period of 10 years, 160 children with cataracts underwent operation at the University of Tennessee Medical Center, Memphis. The surgical, optical, and psychosocial rehabilitation of these patients was analyzed and studied. The optical rehabilitation included patients with glasses, intraocular lens implants, epikeratophakia, and contact lenses. Seventy three of these patients were chosen at random and reevaluated as to visual outcome, and 46 were subjected to a psychosocial test to evaluate their quality of life and their rehabilitation. Eighteen of these were also given a psychosocial test to evaluate the quality of life enjoyed by these children at an older age following treatment for the cataract. Surgical, optical, and psychosocial rehabilitation of such children is also discussed. This is the first report of the psychological evaluation of such children. The further needs of these children as they approach adulthood are discussed in detail. (+info)Functional visual loss in amblyopia and the effect of occlusion therapy. (4/443)
PURPOSE: The aim of this study was to define the nature of functional visual loss in amblyopia and to identify those subjects whose amblyopia is chiefly due to one or more of the following deficits: abnormal contour interaction, abnormal eye movements, abnormal contrast perception, or positional uncertainty. METHODS: Fifty amblyopic children with a mean age of 5.6+/-1.3 years were referred from diverse sources. In addition to routine orthoptic and optometric evaluation the principal visual deficits in the amblyopic eye of each subject were identified using the following measures of visual acuity: high contrast linear, single optotype, repeat letter and low contrast linear, plus Vernier and displacement thresholds. These measures were repeated as the children underwent a prescribed occlusion therapy regime, after parental consent. RESULTS: All amblyopic subjects demonstrated a functional loss in each of the tests used, and occlusion therapy appeared to improve all aspects of the amblyopia. High contrast visual acuity was not always the primary deficit in visual function, and when amblyopic subjects were divided according to their primary visual loss, this visual function was found to show the greatest improvement with treatment. CONCLUSIONS: These results suggest that to successfully identify the primary visual deficit and monitor the success of occlusion therapy it is necessary to assess other aspects of visual function in amblyopia. (+info)Refractive associations with cataract: the Blue Mountains Eye Study. (5/443)
PURPOSE: To assess the relationship between myopia and age-related cataract in a defined older population. METHODS: A cross-sectional study of 3654 people aged 49 to 97 years was conducted in the Blue Mountains near Sydney, Australia, from 1992 through 1994. General medical, eye, and refractive history and information about confounders were collected by questionnaire. Participants had a detailed determination of refraction, and the spherical equivalent refraction of each eye was calculated. The Wisconsin Cataract Grading System was used in masked grading of slit lamp and retroillumination lens photographs, to assess presence and severity of nuclear, cortical, and posterior subcapsular (PSC) cataract. Data from both eyes were analyzed by the generalized estimating equation method, adjusting for cataract risk factors. RESULTS: Included in the analysis were 7308 eyes. A history of wearing distance glasses, excluding eyes with current hyperopic refraction, was used as a proxy for myopia. Subjects who had worn distance glasses were more likely to have nuclear cataract (odds ratio [OR] 1.3; confidence interval [CI] 1.0-2.1). After stratification by age at first wearing distance glasses, this relationship remained only for people who first wore distance glasses after age 40 years (OR 1.3; CI 1.0-1.8), which suggested a myopic refractive shift from developing nuclear opacity and was supported by the weak association found between current myopic refraction and nuclear cataract (OR 1.3; CI 1.0-1.6). Eyes with onset of myopia before age 20 years had the greatest PSC cataract risk (OR 3.9; CI 2.0-7.9). This was supported by the finding of an association between current myopic refraction and PSC cataract (OR 2.5; CI 1.6-4.1). PSC cataract was inversely associated with hyperopia (OR 0.6; CI 0.4-0.9). Refraction-related increasing odds were found between PSC cataract and myopia: low myopia (OR 2.1; CI 1.4-3.5), moderate myopia (OR 3.1; CI 1.6-5.7), and high myopia (OR 5.5; CI 2.8-10.9). High myopia was associated with PSC, cortical, and late nuclear cataract. CONCLUSIONS: Early-onset myopia (before age 20 years) may be a strong and independent risk factor for PSC cataract. The findings suggest the possibility of a dose response between levels of myopia and PSC cataract. Nuclear cataract was associated with presumed acquired myopia, whereas high myopia was associated with all three types of cataract. (+info)Treatment of photosensitive epilepsy using coloured glasses. (6/443)
A recently introduced optometric technique, colorimetry, enables the perceptual effects of ophthalmic tints to be evaluated subjectively, optimized, and then prescribed in tinted spectacles. The new technique is beneficial in reducing visual stress in patients with dyslexia and migraine. We describe an open trial designed to ascertain: (1) whether the colorimetry assessment, as it is now given, is safe for the investigation of photosensitive patients in optometry clinics where colorimetry equipment is most readily available, but where EEG control is not practical; (2) what proportion of patients with photosensitive epilepsy is likely to benefit to the extent already described in individual cases; (3) whether a tint selected by colorimetry could be shown to reduce the incidence of paroxysmal epileptiform EEG activity in response to flicker and patterns, thereby validating the subjective methods and corroborating the reported seizure reduction. Twenty-four females and nine males (aged 12-43 years) took part. All the patients had suffered visually-provoked seizures, had exhibited a photoparoxysmal response on at least one previous EEG recording, and had received a diagnosis of photosensitive epilepsy. Twenty-two were currently experiencing seizures. A further EEG was recorded in all except seven cases: a routine resting record, followed by hyperventilation. Colorimetry was performed after hyperventilation and before photic stimulation. Twenty-three (70%) reported beneficial effects during colorimetry and were prescribed glasses. There was a preponderance of lenses with a rose or purple colour, in contrast to patients with dyslexia. Seventeen of the 23 patients were available at follow-up, an average of 2.4 years later. Thirteen (57%) reported benefits, and said they were still using the lenses. In six of the 13 the benefits were pronounced, including a reduction of dizziness from fluorescent lighting, elimination of aura when using computer screens etc. Only in three cases was there a reduction in seizures that could reasonably be attributed to the use of lenses; in two of these cases no medications were prescribed, and in the third the medications remained unchanged for four years, two before and two after the introduction of the glasses. In an additional four cases a reduction in seizures was observed but medication had been changed. There was a modest reduction in EEG photosensitivity with the coloured lenses but also to an equivalent or lesser extent with grey in all of the eight patients examined in this way. One patient had seizures during colorimetry, but the seizures were not accompanied by scalp EEG changes. (+info)Effect of adaptation to telescopic spectacles on the initial human horizontal vestibuloocular reflex. (7/443)
Gain of the vestibuloocular reflex (VOR) not only varies with target distance and rotational axis, but can be chronically modified in response to prolonged wearing of head-mounted magnifiers. This study examined the effect of adaptation to telescopic spectacles on the variation of the VOR with changes in target distance and yaw rotational axis for head velocity transients having peak accelerations of 2,800 and 1,000 degrees /s(2). Eye and head movements were recorded with search coils in 10 subjects who underwent whole body rotations around vertical axes that were 10 cm anterior to the eyes, centered between the eyes, between the otoliths, or 20 cm posterior to the eyes. Immediately before each rotation, subjects viewed a target 15 or 500 cm distant. Lighting was extinguished immediately before and was restored after completion of each rotation. After initial rotations, subjects wore 1.9x magnification binocular telescopic spectacles during their daily activities for at least 6 h. Test spectacles were removed and measurement rotations were repeated. Of the eight subjects tolerant of adaptation to the telescopes, six demonstrated VOR gain enhancement after adaptation, while gain in two subjects was not increased. For all subjects, the earliest VOR began 7-10 ms after onset of head rotation regardless of axis eccentricity or target distance. Regardless of adaptation, VOR gain for the proximate target exceeded that for the distant target beginning at 20 ms after onset of head rotation. Adaptation increased VOR gain as measured 90-100 ms after head rotation onset by an average of 0.12 +/- 0.02 (SE) for the higher head acceleration and 0.19 +/- 0.02 for the lower head acceleration. After adaptation, four subjects exhibited significant increases in the canal VOR gain only, whereas two subjects exhibited significant increases in both angular and linear VOR gains. The latencies of linear and early angular target distance effects on VOR gain were unaffected by adaptation. The earliest significant change in angular VOR gain in response to adaptation occurred 50 and 68 ms after onset of the 2,800 and 1,000 degrees /s(2) peak head accelerations, respectively. The latency of the adaptive increase in linear VOR gain was approximately 50 ms for the peak head acceleration of 2,800 degrees /s(2), and 100 ms for the peak head acceleration of 1,000 degrees /s(2). Thus VOR gain changes and latency were consistent with modification in the angular VOR in most subjects, and additionally in the linear VOR in a minority of subjects. (+info)Effect of spectacles on changes of spherical hypermetropia in infants who did, and did not, have strabismus. (8/443)
AIM: To explore why emmetropisation fails in children who have strabismus. METHODS: 289 hypermetropic infants were randomly allocated spectacles and followed. Changes in spherical hypermetropia were compared in those who had strabismus and those who did not. The effect of wearing glasses on these changes was assessed using t tests and regression analysis. RESULTS: Mean spherical hypermetropia decreased in both eyes of "normal" children (p<0.001). The consistent wearing of glasses impeded this process in both eyes (p<0.007). In the children with strabismus, there were no significant changes in either eye, irrespective of treatment (p>0. 05). CONCLUSIONS: In contrast with normal infants, neither eye of those who had strabismus emmetropised, irrespective of whether the incoming vision was clear or blurred. It is suggested that these eyes did not "recognise" the signal of blurred vision, and that they remained long sighted because they were destined to squint. Hence, the children did not squint because they were long sighted, and glasses did not prevent them squinting. (+info)Eyeglasses are a medical device used to correct vision problems. Also known as spectacles, they consist of frames that hold one or more lenses through which a person looks to see clearly. The lenses may be made of glass or plastic and are designed to compensate for various visual impairments such as nearsightedness, farsightedness, astigmatism, or presbyopia. Eyeglasses can be custom-made to fit an individual's face and prescription, and they come in a variety of styles, colors, and materials. Some people wear eyeglasses all the time, while others may only need to wear them for certain activities such as reading or driving.
Refractive errors are a group of vision conditions that include nearsightedness (myopia), farsightedness (hyperopia), astigmatism, and presbyopia. These conditions occur when the shape of the eye prevents light from focusing directly on the retina, causing blurred or distorted vision.
Myopia is a condition where distant objects appear blurry while close-up objects are clear. This occurs when the eye is too long or the cornea is too curved, causing light to focus in front of the retina instead of directly on it.
Hyperopia, on the other hand, is a condition where close-up objects appear blurry while distant objects are clear. This happens when the eye is too short or the cornea is not curved enough, causing light to focus behind the retina.
Astigmatism is a condition that causes blurred vision at all distances due to an irregularly shaped cornea or lens.
Presbyopia is a natural aging process that affects everyone as they get older, usually around the age of 40. It causes difficulty focusing on close-up objects and can be corrected with reading glasses, bifocals, or progressive lenses.
Refractive errors can be diagnosed through a comprehensive eye exam and are typically corrected with eyeglasses, contact lenses, or refractive surgery such as LASIK.
An encyclopedia is a comprehensive reference work containing articles on various topics, usually arranged in alphabetical order. In the context of medicine, a medical encyclopedia is a collection of articles that provide information about a wide range of medical topics, including diseases and conditions, treatments, tests, procedures, and anatomy and physiology. Medical encyclopedias may be published in print or electronic formats and are often used as a starting point for researching medical topics. They can provide reliable and accurate information on medical subjects, making them useful resources for healthcare professionals, students, and patients alike. Some well-known examples of medical encyclopedias include the Merck Manual and the Stedman's Medical Dictionary.
I'm not aware of a specific medical definition for "ceremonial behavior." However, in general, ceremonial behaviors are actions or rituals that are performed in a formal, ritualistic manner, often as part of a cultural, religious, or social tradition. These behaviors can serve various purposes, such as marking important life events, expressing shared values and beliefs, or reinforcing social bonds.
In some cases, ceremonial behaviors may have health implications. For example, participation in cultural or religious rituals can provide a sense of community and support, which can have positive effects on mental health. Additionally, certain ceremonial practices, such as meditation or prayer, may have direct physiological effects that contribute to stress reduction and relaxation.
However, it's important to note that the term "ceremonial behavior" is not a medical diagnosis or clinical concept, and its meaning can vary depending on the context in which it is used.
I'm sorry for any confusion, but "Glass" is not a medical term. Glass is a non-crystalline amorphous solid that is often transparent and has various uses in everyday life, including medical devices and equipment. If you have any questions related to medical terminology or concepts, please provide them, and I'll be happy to help.
MedlinePlus is not a medical term, but rather a consumer health website that provides high-quality, accurate, and reliable health information, written in easy-to-understand language. It is produced by the U.S. National Library of Medicine, the world's largest medical library, and is widely recognized as a trusted source of health information.
MedlinePlus offers information on various health topics, including conditions, diseases, tests, treatments, and wellness. It also provides access to drug information, medical dictionary, and encyclopedia, as well as links to clinical trials, medical news, and patient organizations. The website is available in both English and Spanish and can be accessed for free.
Intraocular lenses (IOLs) are artificial lens implants that are placed inside the eye during ophthalmic surgery, such as cataract removal. These lenses are designed to replace the natural lens of the eye that has become clouded or damaged, thereby restoring vision impairment caused by cataracts or other conditions.
There are several types of intraocular lenses available, including monofocal, multifocal, toric, and accommodative lenses. Monofocal IOLs provide clear vision at a single fixed distance, while multifocal IOLs offer clear vision at multiple distances. Toric IOLs are designed to correct astigmatism, and accommodative IOLs can change shape and position within the eye to allow for a range of vision.
The selection of the appropriate type of intraocular lens depends on various factors, including the patient's individual visual needs, lifestyle, and ocular health. The implantation procedure is typically performed on an outpatient basis and involves minimal discomfort or recovery time. Overall, intraocular lenses have become a safe and effective treatment option for patients with vision impairment due to cataracts or other eye conditions.
Extended-wear contact lenses are a type of contact lens that is designed to be worn continuously, including during sleep, for an extended period of time. These lenses are typically made from materials that allow more oxygen to reach the eye, reducing the risk of eye irritation and infection compared to traditional overnight wear of non-extended wear lenses.
Extended-wear contact lenses can be worn for up to 30 days or longer, depending on the specific lens material and the individual's tolerance. However, it is important to note that even extended-wear contacts come with some risks, including a higher risk of eye infections and corneal ulcers compared to daily wear lenses. Therefore, it is essential to follow the recommended wearing schedule and replacement schedule provided by an eye care professional, as well as to have regular eye exams to monitor the health of the eyes.
Hydrophilic contact lenses are a type of contact lens that is designed to absorb and retain water. These lenses are made from materials that have an affinity for water, which helps them to remain moist and comfortable on the eye. The water content of hydrophilic contact lenses can vary, but typically ranges from 30-80% by weight.
Hydrophilic contact lenses are often used to correct refractive errors such as myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. They can be made in a variety of materials, including soft hydrogel and silicone hydrogel.
One advantage of hydrophilic contact lenses is that they tend to be more comfortable to wear than other types of contacts, as they retain moisture and conform closely to the shape of the eye. However, they may also be more prone to deposits and buildup, which can lead to protein accumulation and discomfort over time. Proper care and cleaning are essential to maintain the health of the eyes when wearing hydrophilic contact lenses.
Contact lenses are thin, curved plastic or silicone hydrogel devices that are placed on the eye to correct vision, replace a missing or damaged cornea, or for cosmetic purposes. They rest on the surface of the eye, called the cornea, and conform to its shape. Contact lenses are designed to float on a thin layer of tears and move with each blink.
There are two main types of contact lenses: soft and rigid gas permeable (RGP). Soft contact lenses are made of flexible hydrophilic (water-absorbing) materials that allow oxygen to pass through the lens to the cornea. RGP lenses are made of harder, more oxygen-permeable materials.
Contact lenses can be used to correct various vision problems, including nearsightedness, farsightedness, astigmatism, and presbyopia. They come in different shapes, sizes, and powers to suit individual needs and preferences. Proper care, handling, and regular check-ups with an eye care professional are essential for maintaining good eye health and preventing complications associated with contact lens wear.
Contact lens solutions are a type of disinfecting and cleaning solution specifically designed for use with contact lenses. They typically contain a combination of chemicals, such as preservatives, disinfectants, and surfactants, that work together to clean, disinfect, and store contact lenses safely and effectively.
There are several types of contact lens solutions available, including:
1. Multipurpose solution: This type of solution is the most commonly used and can be used for cleaning, rinsing, disinfecting, and storing soft contact lenses. It contains a combination of ingredients that perform all these functions in one step.
2. Hydrogen peroxide solution: This type of solution contains hydrogen peroxide as the main active ingredient, which is a powerful disinfectant. However, it requires a special case called a neutralizer to convert the hydrogen peroxide into water and oxygen before using the lenses.
3. Saline solution: This type of solution is used only for rinsing and storing contact lenses and does not contain any disinfecting or cleaning agents. It is often used in combination with other solutions for a complete contact lens care routine.
4. Daily cleaner: This type of solution is used to remove protein buildup and other deposits from the surface of contact lenses. It should be used in conjunction with a multipurpose or hydrogen peroxide solution as part of a daily cleaning routine.
It's important to follow the manufacturer's instructions carefully when using contact lens solutions to ensure that they are used safely and effectively. Failure to do so could result in eye irritation, infection, or other complications.
Eye protective devices are specialized equipment designed to protect the eyes from various hazards and injuries. They include items such as safety glasses, goggles, face shields, welding helmets, and full-face respirators. These devices are engineered to provide a barrier between the eyes and potential dangers like chemical splashes, impact particles, radiation, and other environmental hazards.
Safety glasses are designed to protect against flying debris, dust, and other airborne particles. They typically have side shields to prevent objects from entering the eye from the sides. Goggles offer a higher level of protection than safety glasses as they form a protective seal around the eyes, preventing liquids and fine particles from reaching the eyes.
Face shields and welding helmets are used in industrial settings to protect against radiation, sparks, and molten metal during welding or cutting operations. Full-face respirators are used in environments with harmful airborne particles or gases, providing protection for both the eyes and the respiratory system.
It is essential to choose the appropriate eye protective device based on the specific hazard present to ensure adequate protection.
Rimless eyeglasses
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Adjustable-focus eyeglasses
Bug-eye glasses
Cat eye glasses
Eyeglass prescription
The Gambler (novel)
Smith and Dale
Sevinj Nurugizi
Esperanto words with the infix -um-
Tad Dorgan
Eyewear
Buddy Holly
Estrellas de Chocolate
Descarga
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Bates method
Buddy Complex
Ramesh Raskar
Library of Congress Classification:Class R -- Medicine
List of oldest eyewear companies
Brian A. Barsky
USNS Comfort
Elisse Joson
Lorgnette
The Mysteries of Alfred Hedgehog
List of the United States Army fire control and sighting material by supply catalog designation
Refractive error
Shiv R. Jhawar
Rimless eyeglasses - Wikipedia
Eye Wear | Contact Lenses | Eyeglasses | MedlinePlus
Distance Eyeglasses and Reading Eyeglasses
Men's Black Eyeglasses | ShopStyle
Eyeglasses | Maui Jim®
Eyeglasses | Warby Parker
New Look - Eye Glasses Clean Shopify Theme - TemplateMonster
Green Tamalpais Eyeglasses #445924 | Zenni Optical
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VSP Developing Eyeglass Frames With Health-Tracking Features
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eyeglasses for women | 1-800-GET-LENS
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Ray-Ban RX7185 Unisex Square Eyeglasses - Macy's
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Sunglasses2
- Since eyeglasses, sunglasses and blue light-blocking glasses are made of mostly glass, metal and plastic, we asked experts for their best tips to disinfect your eyeglasses. (abc15.com)
- we accept small order and offer short delivery time microfiber pouch and cloth/sunglasses pouch/eyeglasses pouch/small soft pouch Material. (ecplaza.net)
Glasses8
- Rimless glasses were a popular style of eyeglasses from the 1880s until into the 1960s, and re-emerged in popularity in the latter part of the 20th century and early 21st century. (wikipedia.org)
- historically, most eyeglass wearers needed them to correct presbyopia, and only clergymen tended to be literate enough to require reading glasses. (wikipedia.org)
- Rimless glasses were first widely offered as pince-nez, with manufacturers arguing that the design was superior to extant eyeglasses because it secured the lenses directly to the nose and kept them in place. (wikipedia.org)
- The design eliminated any obstruction of vision caused by eyeglass frames and also kept the glasses secure on the wearer's head. (wikipedia.org)
- VSP's idea began within the company about a year ago as Project Genesis to create eyeglass frames that incorporate health tracking so that users would be able to avoid wearing multiple devices, such as a smartwatch, when they are already wearing glasses, said Muller. (eweek.com)
- Ultimately, the company potentially sees health-tracking eyeglasses helping wearers collect their own data to track their health whenever they are wearing their glasses, said Muller. (eweek.com)
- TEMECULA - Billions of people across the globe need eyeglasses to drive a car, read a book, watch television and perform a host of other tasks of daily life.Although glasses are highly effective, people who wear them understand they may have to make a few concessions while doing so. (myvalleynews.com)
- Katsikos says that once your glasses have been disinfected, you can go over them with an approved eyeglass lens cleanser, usually sold at the doctor's office. (abc15.com)
Lenses17
- Rimless eyeglasses are a type of eyeglasses in which the lenses are mounted directly to the bridge or temples. (wikipedia.org)
- Single vision lenses are eyeglass lenses that only have one dioptric power throughout the entire lens. (zeiss.com)
- They can be used to correct poor vision in either near or far viewing situations, which is why single vision lenses form the basis of both distance eyeglasses and reading eyeglasses. (zeiss.com)
- As well as offering different powers, these two popular types of eyeglasses also differ in their appearance: single vision lenses for long-sighted wearers are slightly thicker at the center of the lens, while single vision lenses for short-sighted wearers are slightly thicker at the edges. (zeiss.com)
- Reading eyeglasses are made by tailoring single vision lenses to the wearer's individual reading distance, which is generally between 11 and 16 inches. (zeiss.com)
- This performance tier comprises single vision lenses with a spherical lens design which are a popular choice for single vision reading eyeglasses. (zeiss.com)
- Title : Eye care visits and use of eyeglasses or contact lenses, United States, 1979 and 1980 Personal Author(s) : Poe, Gail S. Corporate Authors(s) : National Center for Health Statistics (U.S.) Published Date : February 1984 Series : Vital and health statistics. (cdc.gov)
- can be corrected with glass or plastic lenses mounted in a frame (eyeglasses) or with a small lens made of plastic floating or resting on the cornea (contact lens). (msdmanuals.com)
- Good vision correction is possible with either eyeglasses or contact lenses. (msdmanuals.com)
- Eyeglass lenses can be made of either plastic or glass. (msdmanuals.com)
- Plastic lenses for eyeglasses are lighter but are more likely to scratch. (msdmanuals.com)
- Glass lenses for eyeglasses are more durable and less likely to scratch than plastic but are more likely to break, potentially causing injury. (msdmanuals.com)
- Bifocals are eyeglasses that contain two lenses-an upper lens that corrects the view of distant objects and a lower lens that corrects the view of nearby objects, such as reading material. (msdmanuals.com)
- Continuously variable lenses (progressive lenses or no-line bifocal lenses) also permit focusing at middle distances and have a cosmetic advantage in that there is no line or sharp division between the regions of the eyeglass lens. (msdmanuals.com)
- Many people think contact lenses allow them to be more active or make them feel more attractive than when wearing eyeglasses. (msdmanuals.com)
- However, contact lenses require more care than eyeglasses and, rarely, they can damage the eye. (msdmanuals.com)
- Contact lenses provide better peripheral vision (the outer limits of the field of vision) than do eyeglasses. (msdmanuals.com)
Wearers1
- As their name implies, distance eyeglasses enable wearers to see distant objects more clearly. (zeiss.com)
Warby Parker3
- A woman pleaded guilty to stealing $126,900 worth of eyeglass frames from Warby Parker , Georgia. (yahoo.com)
- When Warby Parker (NYSE: WRBY) first launched its online eyeglass shop, its goal was simple: Make eyewear more accessible and affordable for consumers. (yahoo.com)
- Online eyeglasses retailer Warby Parker (NYSE: WRBY) goes public via direct listing. (yahoo.com)
Eyewear7
- Eyeglass frames that incorporate health-tracking monitors and features are in development at eyewear and vision insurance vendor VSP, which hopes to create another data-collection option for health-conscious customers in the future. (eweek.com)
- The early devices, which look like standard eyeglass frames, presently include a magnetometer, an accelerometer and a gyroscope that combine to track a wearer's movements and steps to give statistics about calories burned, distance covered and activity time, Leslie Muller, vice president for design with VSP division Marchon Eyewear, told eWEEK . (eweek.com)
- The frames used in the prototype eyeglasses are from VSP's Dragon Alliance (pictured) house brand of eyewear. (eweek.com)
- When you pick up a pair of Lafont Paris eyeglasses, you'll know right away you've chosen standout eyewear. (framesdirect.com)
- Lafont eyeglass are the eyewear of choice for men and women who appreciate bespoke accessories crafted with unrivaled attention to detail. (framesdirect.com)
- Takumi Magnetic Eyewear takes its name from a Japanese word meaning "master craftsman" or "artisan," and these eyeglasses frames live up to the term. (framesdirect.com)
- This distinctive eyewear maker draws inspiration from art and architecture for its modern, sophisticated eyeglasses designs. (framesdirect.com)
Men's Eyeglasses1
- Shop our collection of men's eyeglasses , women's eyeglasses and Oliver Peoples' best-sellers . (oliverpeoples.com)
Optical1
- Eyeglasses are provided through a contract with Classic Optical Laboratories. (mt.gov)
19931
- Apple founder and former CEO Steve Jobs wore round rimless eyeglasses for 18 years, from 1993 until his death in 2011. (wikipedia.org)
Frames5
- The early model health-tracking frames look different from any other eyeglass frames only in the inside-left temple area, where it is slightly thicker than a regular frame, according to Muller. (eweek.com)
- Please try our Advanced Frame Search to sort through our huge inventory of 300,000 eyeglasses frames, to find a similar frame. (eyeglasses.com)
- Had trouble finding frames I liked until eyeglasses.com. (eyeglasses.com)
- These authentic Ray-Ban eyeglasses have a butterfly shape and are full rim frames. (eyeglasses123.com)
- Takumi® means "master craftsman," and these attractive and unique eyeglasses frames live up to that definition with unsurpassed quality and style. (framesdirect.com)
Children's2
Women2
- Discover our iconic selection of Ray-Ban eyeglasses for both men and women made to match your style whilst defining your vision. (macys.com)
- For three generations the Lafont family has designed exquisite eyeglasses for men and women, making Parisian sophistication accessible around the world. (framesdirect.com)
Exquisite1
- Meticulously crafted from the finest materials, Oliver Peoples' designer eyeglasses are both exquisite and timeless. (oliverpeoples.com)
Vision5
- Reading and distance eyeglasses are the most common ways of improving vision. (zeiss.com)
- This means that you will benefit from single vision eyeglasses that give you perfect vision - and a perfect appearance! (zeiss.com)
- The fact is that off-the-shelf reading eyeglasses can never supply the optimum correction of your vision that you would typically expect from a qualified eye doctor. (zeiss.com)
- There's no doubt that it's worth investing in a professionally fitted pair of reading eyeglasses - not just to benefit from your full vision potential, but also to improve your overall sense of well-being. (zeiss.com)
- Eyeglasses will improve vision and should be used regularly. (who.int)
Type1
- A new type of compact see-through digital eyeglasses are being developed that allow the wearer to watch videos, play 3-D games, read e-mail, and even receive GPS-assisted guidelines without taking his or her eyes off the road. (thefutureofthings.com)
Style4
- The style became popularized in the years prior to World War I by Theodore Roosevelt, whose popularity with the American people and public image as a frontiersman helped to eliminate some of the stigma associated with eyeglasses. (wikipedia.org)
- The most popular three-piece style was known as a riding temple, and was modeled after a style of eyeglasses favored by those who relied on horses for transportation. (wikipedia.org)
- Ray-Ban RX5298 eyeglasses is a pair of women's plastic eyeglasses, that will take your style to a new level. (eyeglasses123.com)
- If you're looking to elevate your style, our latest collection of eyeglasses online will let you express your unique personality. (oliverpeoples.com)
Time2
- First time ordering eyeglasses online and it was a very pleasant experience. (eyeglasses.com)
- Great Guess GU1906 Eyeglasses is perfect for day time lunch with friend as well as night drinks at the bar. (webeyecare.com)
Pair1
- Enjoy luxurious all-day wear with a pair of Takumi eyeglasses with TurboFlex hinges. (framesdirect.com)
Designer1
- The designer eyeglasses are expertly crafted in France in avant-garde styles that are at once refined and rebellious. (framesdirect.com)
Make2
- 3 Make a purchase at eyeglasses.com, and then submit our invoice to insurance company for reimbursement. (eyeglasses.com)
- When ordering eyeglasses from the eyeglasses provider, make sure the provider carries eyeglasses covered under the Classic contract. (mt.gov)
Unique1
- Despite these shifts, they are unique among eyeglass styles in that they have never gone completely out of fashion, remaining an acceptable alternative through the years to more stylish designs. (wikipedia.org)
Meet2
- On-trend styling and an eye for graceful Japanese design meet in the Takumi eyeglasses collection. (framesdirect.com)
- Trifocals are eyeglasses that meet this need because they contain a third lens for middle distance. (msdmanuals.com)
Includes1
- Lafont's collection includes eyeglasses with an emphasis on elegance. (framesdirect.com)
Health1
- Wearing her eyeglasses, this photograph depicted epidemiologist, Dr. Venecia Ramírez, in Health Area IV of the Dominican Republic, as she was in the process of briefing authorities on the sanitary, and epidemiological situation of a shelter in August, 2012, during response activities following Tropical Storm Isaac. (cdc.gov)
Rimless eyeglasses3
- Apple founder and former CEO Steve Jobs wore round rimless eyeglasses for 18 years, from 1993 until his death in 2011. (wikipedia.org)
- The template for rimless eyeglasses date back to the 1820s, when an Austrian inventor named Johann Friedrich Voigtländer [de] marketed a rimless monocle. (wikipedia.org)
- Silhouette's breathtaking Titan Minimal Art brand collection pushes the boundaries of rimless eyeglasses without limits - without frame, hinges, and screws. (eyeglasses.com)
Refractive errors1
- Eyeglasses are the safest and simplest way to correct refractive errors. (nih.gov)
Rectangle Eyeglasses2
- Rectangle Eyeglasses 153995 are ideal for those who prefer a more subtle appearance. (goggles4u.com)
- Rectangle Eyeglasses 155073 come with the retro half-rim design. (goggles4u.com)
Prescribe eyeglasses2
- Eye doctors can prescribe eyeglasses as part of a regular eye exam. (nih.gov)
- Your healthcare provider can prescribe eyeglasses if necessary and detect any eye diseases early. (clevelandclinic.org)
COLLECTIONS2
- Izod Izod 2015 frames feature a fashionable full frame design, which is the largest component of designer eyeglasses brands collections. (eyeglasses.com)
- Join Dr. Rachael Gillibrand as she explores the connections between eye impairments and the creation of eyeglasses, using the collections of the National Library of Medicine (NLM). (nih.gov)
Search2
- Your search for » eyeglasses « did not match any icons with the current filter settings. (iconarchive.com)
- Please try our Advanced Frame Search to sort through our huge inventory of 300,000 eyeglasses frames, to find a similar frame. (eyeglasses.com)
Chanel1
- Loving my new Chanel eyeglasses, many thanks to Luxottica . (nitrolicious.com)
LensCrafters1
- The last time I got prescription eyeglasses was two years ago at LensCrafters , I loved the experience and quality so I went back again last month to get new eyeglasses. (nitrolicious.com)
Shapes1
- The Ray-Ban eyeglasses you love in a size perfect for kids, available in rectangular, square, round and other popular Ray-Ban shapes. (ray-ban.com)
Exam1
- If you wear eyeglasses, get an eye exam regularly - as often as your eye doctor recommends. (nih.gov)
Cloth1
- Gently buff the paste away with an eyeglass cloth. (ehow.com)
Stylish2
- Despite these shifts, they are unique among eyeglass styles in that they have never gone completely out of fashion, remaining an acceptable alternative through the years to more stylish designs. (wikipedia.org)
- When the adventurer in you is looking for the perfect eyeglass frame to accommodate both a stylish workplace and a zealous personal lifestyle, the Windjammer answers that call. (39dollarglasses.com)
Brain1
- The eyeglass cameras wirelessly stream the visual information they have recorded to two neuro-prosthetic devices implanted in the rear of the brain. (nih.gov)
Wear1
- Michael Kors Aruba MK3026 Eyeglasses, designed by Michael Kors world-renowned award-winning designer of luxury accessories and ready to wear. (eyeglasses123.com)
Design2
- The XOXO Anniston eyeglasses are a timeless square design with retro flair. (framesdirect.com)
- Together, we will dive into the pages of historical texts, including Guy de Chauliac's Chyrurgia, Bartholomeus Anglicus' De proprietatibus rerum and the writings of Ambroise Paré, to explore how ocular health has influenced the design of eyeglasses throughout history. (nih.gov)
Black1
- Yes, they are all black rimmed eyeglasses, the look I wanted. (nitrolicious.com)
People2
- The style became popularized in the years prior to World War I by Theodore Roosevelt, whose popularity with the American people and public image as a frontiersman helped to eliminate some of the stigma associated with eyeglasses. (wikipedia.org)
- FitByte, a new wearable from CMU researchers, uses sensors on eyeglasses to help people track their food habits. (cmu.edu)
Correctly1
- The eyeglass lens bends light to make it focus correctly on your retina (the light-sensitive layer of tissue at the back of the eye). (nih.gov)
Close1
- If you have trouble seeing clearly, either close or at a distance, eyeglasses can help. (clevelandclinic.org)
Correct1
- Eyeglasses can correct the problem and help you see clearly. (clevelandclinic.org)
Material1
- What material are eyeglasses made of? (clevelandclinic.org)
Features1
- And when you add in the Concept's other elegant features, like the keyhole nose bridge and diamond stud accents, you've got what could be considered the quintessential eyeglass frame. (allaboutvision.com)
Love2
- I was most excited about this although I still love my Prada Postcards eyeglasses. (nitrolicious.com)
- Trying on the Prada eyeglasses for my final decision, love the two-tone frame. (nitrolicious.com)
Device1
- Many Americans do not have access to a simple but life-changing device: eyeglasses. (medscape.com)
Types1
- What are the different types of eyeglasses? (nih.gov)