Anterior chamber. Medical search

The space in the eye, filled with aqueous humor, bounded anteriorly by the cornea and a small portion of the sclera and posteriorly by a small portion of the ciliary body, the iris, and that part of the crystalline lens which presents through the pupil. (Cline et al., Dictionary of Visual Science, 4th ed, p109)

The most anterior portion of the uveal layer, separating the anterior chamber from the posterior. It consists of two layers - the stroma and the pigmented epithelium. Color of the iris depends on the amount of melanin in the stroma on reflection from the pigmented epithelium.

The clear, watery fluid which fills the anterior and posterior chambers of the eye. It has a refractive index lower than the crystalline lens, which it surrounds, and is involved in the metabolism of the cornea and the crystalline lens. (Cline et al., Dictionary of Visual Science, 4th ed, p319)

The front third of the eyeball that includes the structures between the front surface of the cornea and the front of the VITREOUS BODY.

Examination of the angle of the anterior chamber of the eye with a specialized optical instrument (gonioscope) or a contact prism lens.

A form of glaucoma in which the intraocular pressure increases because the angle of the anterior chamber is blocked and the aqueous humor cannot drain from the anterior chamber.

The pressure of the fluids in the eye.

A porelike structure surrounding the entire circumference of the anterior chamber through which aqueous humor circulates to the canal of Schlemm.

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 removal of a cataractous CRYSTALLINE LENS from the eye.

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.

Diseases, dysfunctions, or disorders of or located in the iris.

A ring of tissue extending from the scleral spur to the ora serrata of the RETINA. It consists of the uveal portion and the epithelial portion. The ciliary muscle is in the uveal portion and the ciliary processes are in the epithelial portion.

The white, opaque, fibrous, outer tunic of the eyeball, covering it entirely excepting the segment covered anteriorly by the cornea. It is essentially avascular but contains apertures for vessels, lymphatics, and nerves. It receives the tendons of insertion of the extraocular muscles and at the corneoscleral junction contains the canal of Schlemm. (From Cline et al., Dictionary of Visual Science, 4th ed)

The use of statistical and mathematical methods to analyze biological observations and phenomena.

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.

Inflammation of the anterior uvea comprising the iris, angle structures, and the ciliary body. Manifestations of this disorder include ciliary injection, exudation into the anterior chamber, iris changes, and adhesions between the iris and lens (posterior synechiae). Intraocular pressure may be increased or reduced.

Bleeding in the anterior chamber of the eye.

A scientific tool based on ULTRASONOGRAPHY and used not only for the observation of microstructure in metalwork but also in living tissue. In biomedical application, the acoustic propagation speed in normal and abnormal tissues can be quantified to distinguish their tissue elasticity and other properties.

Artificial implanted lenses.

An ocular disease, occurring in many forms, having as its primary characteristics an unstable or a sustained increase in the intraocular pressure which the eye cannot withstand without damage to its structure or impairment of its function. The consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches. (Dictionary of Visual Science, 4th ed)

A procedure for removal of the crystalline lens in cataract surgery in which an anterior capsulectomy is performed by means of a needle inserted through a small incision at the temporal limbus, allowing the lens contents to fall through the dilated pupil into the anterior chamber where they are broken up by the use of ultrasound and aspirated out of the eye through the incision. (Cline, et al., Dictionary of Visual Science, 4th ed & In Focus 1993;1(1):1)

An excessive amount of fluid in the cornea due to damage of the epithelium or endothelium causing decreased visual acuity.

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.

Suppurative inflammation of the tissues of the internal structures of the eye frequently associated with an infection.

Single layer of large flattened cells covering the surface of the cornea.

Diseases affecting the eye.

Tumors or cancer of the EYE.

The transparent, semigelatinous substance that fills the cavity behind the CRYSTALLINE LENS of the EYE and in front of the RETINA. It is contained in a thin hyaloid membrane and forms about four fifths of the optic globe.

The selectively permeable barrier, in the EYE, formed by the nonpigmented layer of the EPITHELIUM of the CILIARY BODY, and the ENDOTHELIUM of the BLOOD VESSELS of the IRIS. TIGHT JUNCTIONS joining adjacent cells keep the barrier between cells continuous.

Surgical removal of a section of the iris.

Incomplete rupture of the zonule with the displaced lens remaining behind the pupil. In dislocation, or complete rupture, the lens is displaced forward into the anterior chamber or backward into the vitreous body. When congenital, this condition is known as ECTOPIA LENTIS.

A transparent, biconvex structure of the EYE, enclosed in a capsule and situated behind the IRIS and in front of the vitreous humor (VITREOUS BODY). It is slightly overlapped at its margin by the ciliary processes. Adaptation by the CILIARY BODY is crucial for OCULAR ACCOMMODATION.

Refraction of LIGHT effected by the media of the EYE.

The pigmented vascular coat of the eyeball, consisting of the CHOROID; CILIARY BODY; and IRIS, which are continuous with each other. (Cline et al., Dictionary of Visual Science, 4th ed)

Inflammation of the iris characterized by circumcorneal injection, aqueous flare, keratotic precipitates, and constricted and sluggish pupil along with discoloration of the iris.

Introduction of substances into the body using a needle and syringe.

A layer of the cornea. It is the basal lamina of the CORNEAL ENDOTHELIUM (from which it is secreted) separating it from the CORNEAL STROMA. It is a homogeneous structure composed of fine collagenous filaments, and slowly increases in thickness with age.

A procedure in which fluid is withdrawn from a body cavity or organ via a trocar and cannula, needle, or other hollow instrument.

The distance between the anterior and posterior poles of the eye, measured either by ULTRASONOGRAPHY or by partial coherence interferometry.

Partial or total replacement of the CORNEA from one human or animal to another.

Mild to severe infections of the eye and its adjacent structures (adnexa) by adult or larval protozoan or metazoan parasites.

Deviations from the average or standard indices of refraction of the eye through its dioptric or refractive apparatus.

Measurement of ocular tension (INTRAOCULAR PRESSURE) with a tonometer. (Cline, et al., Dictionary of Visual Science, 4th ed)

The surgical removal of the eyeball leaving the eye muscles and remaining orbital contents intact.

Sterile solutions that are intended for instillation into the eye. It does not include solutions for cleaning eyeglasses or CONTACT LENS SOLUTIONS.

An imaging method using LASERS that is used for mapping subsurface structure. When a reflective site in the sample is at the same optical path length (coherence) as the reference mirror, the detector observes interference fringes.

Substances that display the physical properties of ELASTICITY and VISCOSITY. The dual-nature of these substances causes them to resist applied forces in a time-dependent manner.

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.

Inflammation of part or all of the uvea, the middle (vascular) tunic of the eye, and commonly involving the other tunics (sclera and cornea, and the retina). (Dorland, 27th ed)

Diseases of the uvea.

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.

Any surgical procedure for treatment of glaucoma by means of puncture or reshaping of the trabecular meshwork. It includes goniotomy, trabeculectomy, and laser perforation.

Diseases of the cornea.

Devices used in a technique by which cells or tissues are grown in vitro or, by implantation, in vivo within chambers permeable to diffusion of solutes across the chamber walls. The chambers are used for studies of drug effects, osmotic responses, cytogenic and immunologic phenomena, metabolism, etc., and include tissue cages.

The aperture in the iris through which light passes.

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.

Abnormally low intraocular pressure often related to chronic inflammation (uveitis).

The use of photothermal effects of LASERS to coagulate, incise, vaporize, resect, dissect, or resurface tissue.

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)

Methods and procedures for the diagnosis of diseases of the eye or of vision disorders.

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.

Presence of an intraocular lens after cataract extraction.

An increased reactivity to specific antigens mediated not by antibodies but by cells.

Disorder occurring in the central or peripheral area of the cornea. The usual degree of transparency becomes relatively opaque.

Agents that dilate the pupil. They may be either sympathomimetics or parasympatholytics.

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)

Inflammation of the RETINA. It is rarely limited to the retina, but is commonly associated with diseases of the choroid (CHORIORETINITIS) and of the OPTIC DISK (neuroretinitis).

Congenital absence of or defects in structures of the eye; may also be hereditary.

A form of secondary glaucoma which develops as a consequence of another ocular disease and is attributed to the forming of new vessels in the angle of the anterior chamber.

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 species Oryctolagus cuniculus, in the family Leporidae, order LAGOMORPHA. Rabbits are born in burrows, furless, and with eyes and ears closed. In contrast with HARES, rabbits have 22 chromosome pairs.

A condition in which the intraocular pressure is elevated above normal and which may lead to glaucoma.

Processes and properties of the EYE as a whole or of any of its parts.

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.

Damage or trauma inflicted to the eye by external means. The concept includes both surface injuries and intraocular injuries.

Infections of the eye caused by minute intracellular agents. These infections may lead to severe inflammation in various parts of the eye - conjunctiva, iris, eyelids, etc. Several viruses have been identified as the causative agents. Among these are Herpesvirus, Adenovirus, Poxvirus, and Myxovirus.

Surgical formation of an external opening in the sclera, primarily in the treatment of glaucoma.

Glaucoma in which the angle of the anterior chamber is open and the trabecular meshwork does not encroach on the base of the iris.

Removal of the whole or part of the vitreous body in treating endophthalmitis, diabetic retinopathy, retinal detachment, intraocular foreign bodies, and some types of glaucoma.

Loss of CORNEAL ENDOTHELIUM usually following intraocular surgery (e.g., cataract surgery) or due to FUCHS' ENDOTHELIAL DYSTROPHY; ANGLE-CLOSURE GLAUCOMA; IRITIS; or aging.

Intraocular hemorrhage from the vessels of various tissues of the eye.

A species of the genus MACACA which typically lives near the coast in tidal creeks and mangrove swamps primarily on the islands of the Malay peninsula.

A slowly hydrolyzed muscarinic agonist with no nicotinic effects. Pilocarpine is used as a miotic and in the treatment of glaucoma.

One of the MUSCARINIC ANTAGONISTS with pharmacologic action similar to ATROPINE and used mainly as an ophthalmic parasympatholytic or mydriatic.

Surgery performed on the eye or any of its parts.

An alpha-adrenergic blocking agent that is used in Raynaud's disease. It is also used locally in the eye to reverse the mydriasis caused by phenylephrine and other sympathomimetic agents. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1312)

Experimental devices used in inhalation studies in which a person or animal is either partially or completely immersed in a chemically controlled atmosphere.

Method of making images on a sensitized surface by exposure to light or other radiant energy.

Transmission of gene defects or chromosomal aberrations/abnormalities which are expressed in extreme variation in the structure or function of the eye. These may be evident at birth, but may be manifested later with progression of the disorder.

Acute or chronic inflammation of the iris and ciliary body characterized by exudates into the anterior chamber, discoloration of the iris, and constricted, sluggish pupil. Symptoms include radiating pain, photophobia, lacrimation, and interference with vision.

The making of a continuous circular tear in the anterior capsule during cataract surgery in order to allow expression or phacoemulsification of the nucleus of the lens. (Dorland, 28th ed)

Agents causing contraction of the pupil of the eye. Some sources use the term miotics only for the parasympathomimetics but any drug used to induce miosis is included here.

The back two-thirds of the eye that includes the anterior hyaloid membrane and all of the optical structures behind it: the VITREOUS HUMOR; RETINA; CHOROID; and OPTIC NERVE.

Absence of the crystalline lens resulting from cataract extraction.

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 parasympatholytic anticholinergic used solely to obtain mydriasis or cycloplegia.

The core of the crystalline lens, surrounded by the cortex.

Inanimate objects that become enclosed in the eye.

Deeply perforating or puncturing type intraocular injuries.

Conditions which affect the structure or function of the pupil of the eye, including disorders of innervation to the pupillary constrictor or dilator muscles, and disorders of pupillary reflexes.

Partial or total replacement of all layers of a central portion of the cornea.

Organic siloxanes which are polymerized to the oily stage. The oils have low surface tension and density less than 1. They are used in industrial applications and in the treatment of retinal detachment, complicated by proliferative vitreoretinopathy.

A family of spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one derivatives. These are used as dyes, as indicators for various metals, and as fluorescent labels in immunoassays.

Tumors of the iris characterized by increased pigmentation of melanocytes. Iris nevi are composed of proliferated melanocytes and are associated with neurofibromatosis and malignant melanoma of the choroid and ciliary body. Malignant melanoma of the iris often originates from preexisting nevi.

Congenital or developmental anomaly in which the eyeballs are abnormally small.

The mucous membrane that covers the posterior surface of the eyelids and the anterior pericorneal surface of the eyeball.

Inflammation of the cornea.

The application of drug preparations to the surfaces of the body, especially the skin (ADMINISTRATION, CUTANEOUS) or mucous membranes. This method of treatment is used to avoid systemic side effects when high doses are required at a localized area or as an alternative systemic administration route, to avoid hepatic processing for example.

A surgical procedure used in treatment of glaucoma in which an opening is created through which aqueous fluid may pass from the anterior chamber into a sac created beneath the conjunctiva, thus lowering the pressure within the eye. (Hoffman, Pocket Glossary of Ophthalmologic Terminology, 1989)

The protrusion of an organ or part of an organ into a natural or artificial orifice.

The ten-layered nervous tissue membrane of the eye. It is continuous with the OPTIC NERVE and receives images of external objects and transmits visual impulses to the brain. Its outer surface is in contact with the CHOROID and the inner surface with the VITREOUS BODY. The outer-most layer is pigmented, whereas the inner nine layers are transparent.

The administration of substances into the eye with a hypodermic syringe.

The lamellated connective tissue constituting the thickest layer of the cornea between the Bowman and Descemet membranes.

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)

The theory that human CHARACTER and BEHAVIOR are shaped by the GENES that comprise the individual's GENOTYPE rather than by CULTURE; ENVIRONMENT; and individual choice.

Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.

Measuring and weighing systems and processes.

A surgical specialty concerned with the structure and function of the eye and the medical and surgical treatment of its defects and diseases.

A filarial parasite primarily affecting dogs and cats, but causing an emerging zoonosis in humans involving subcutaneous lesions. It is transmitted by MOSQUITOES.

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. These intraocular lenses are used to supplement the natural lens instead of replacing it.

Mild to fulminant necrotizing vaso-occlusive retinitis associated with a high incidence of retinal detachment and poor vision outcome.

Pupillary constriction. This may result from congenital absence of the dilatator pupillary muscle, defective sympathetic innervation, or irritation of the CONJUNCTIVA or CORNEA.

The washing of a body cavity or surface by flowing water or solution for therapy or diagnosis.

A form of herpetic keratitis characterized by the formation of small vesicles which break down and coalesce to form recurring dendritic ulcers, characteristically irregular, linear, branching, and ending in knoblike extremities. (Dictionary of Visual Science, 3d ed)

Devices, usually incorporating unidirectional valves, which are surgically inserted in the sclera to maintain normal intraocular pressure.

Lasers which use a solid, as opposed to a liquid or gas, as the lasing medium. Common materials used are crystals, such as YAG (YTTRIUM aluminum garnet); alexandrite; and CORUNDUM, doped with a rare earth element such as a NEODYMIUM; ERBIUM; or HOLMIUM. The output is sometimes additionally modified by addition of non-linear optical materials such as potassium titanyl phosphate crystal, which for example is used with neodymium YAG lasers to convert the output light to the visible range.

Application of pharmaceutically active agents on the tissues of the EYE.

A beta-adrenergic antagonist similar in action to PROPRANOLOL. The levo-isomer is the more active. Timolol has been proposed as an antihypertensive, antiarrhythmic, antiangina, and antiglaucoma agent. It is also used in the treatment of MIGRAINE DISORDERS and tremor.

Any fluid-filled closed cavity or sac that is lined by an EPITHELIUM. Cysts can be of normal, abnormal, non-neoplastic, or neoplastic tissues.

Inflammation of the choroid in which the sensory retina becomes edematous and opaque. The inflammatory cells and exudate may burst through the sensory retina to cloud the vitreous body.

Separation of the inner layers of the retina (neural retina) from the pigment epithelium. Retinal detachment occurs more commonly in men than in women, in eyes with degenerative myopia, in aging and in aphakia. It may occur after an uncomplicated cataract extraction, but it is seen more often if vitreous humor has been lost during surgery. (Dorland, 27th ed; Newell, Ophthalmology: Principles and Concepts, 7th ed, p310-12).

In oculo transplants of myometrium from postpartum guinea pigs fail to support sympathetic reinnervation. (1/841)

Sympathetic nerves to the enlarged fetus-containing region of the uterus undergo degenerative changes during late pregnancy and show slow regrowth after parturition. It is not known whether this unusual response of sympathetic nerves to smooth muscle hypertrophy is due to the sensitivity of short adrenergic neurons to hormonal changes, or whether the nerves respond to changes in the neurotrophic capacity of the target. We have investigated this question using in oculo transplantation. Small pieces of myometrium from the uterine horn of virgin guinea pigs, or from the region previously occupied by the placenta and fetus in postpartum guinea pigs, were transplanted into the anterior eye chamber. After 3 wk in oculo, the pattern of reinnervation of the transplants was assessed on whole mount stretch preparations stained for tyrosine hydroxylase. The histology of the transplants was examined in toluidine blue-stained semithin sections. Myometrial transplants from virgin donors and uterine artery transplants from both virgin and postpartum donors became organotypically reinnervated by sympathetic fibres from the host iris. In contrast, sympathetic nerves did not reinnervate myometrial transplants from postpartum donors, although they approached the transplants and became distributed in the surrounding connective tissue. All transplanted tissues showed a normal histological appearance. Both the myometrium and uterine artery from postpartum donors retained a hypertrophic appearance after 3 wk in oculo. We interpret these results to indicate that the degeneration of sympathetic nerves in late pregnancy, as well as their slow regrowth to the uterus after delivery, may be due to changes in uterine smooth muscle rather than a particular sensitivity of short adrenergic neurons to hormonal changes. (+info)

Latrunculin-A causes mydriasis and cycloplegia in the cynomolgus monkey. (2/841)

PURPOSE: To determine the effect of latrunculin (LAT)-A, which binds to G-actin and disassembles actin filaments, on the pupil, accommodation, and isolated ciliary muscle (CM) contraction in monkeys. METHODS: Pupil diameter (vernier calipers) and refraction (coincidence refractometry) were measured every 15 minutes from 0.75 to 3.5 hours after topical LAT-A 42 microg (approximately 10 microM in the anterior chamber [AC]). Refraction was measured every 5 minutes from 0.5 to 1.5 hours after intracameral injection of 10 microl of 50 microM LAT-A (approximately 5 microM in AC), with intramuscular infusion of 1.5 mg/kg pilocarpine HCl (PILO) during the first 15 minutes of measurements. Pupil diameter was measured at 1 and 2 hours, and refraction was measured every 5 minutes from 1 to 2 hours, after intravitreal injection of 20 microl of 1.25 mM LAT-A (approximately 10 microM in vitreous), with intramuscular infusion of 1.5 mg/kg PILO during the first 15 minutes of measurements (all after topical 2.5% phenylephrine), and contractile response of isolated CM strips, obtained <1 hour postmortem and mounted in a perfusion apparatus, to 10 microM PILO +/- LAT-A was measured at various concentrations. RESULTS: Topical LAT-A of 42 microg dilated the pupil without affecting refraction. Intracameral LAT-A of 5 microM inhibited miotic and accommodative responses to intramuscular PILO. Intravitreal LAT-A of 10 microM had no effect on accommodative or miotic responses to intramuscular PILO. LAT-A dose-dependently relaxed the PILO-contracted CM by up to 50% at 3 microM in both the longitudinal and circular vectors. CONCLUSIONS: In monkeys, LAT-A causes mydriasis and cycloplegia, perhaps related to its known ability to disrupt the actin microfilament network and consequently to affect cell contractility and adhesion. Effects of LAT-A on the iris and CM may have significant physiological and clinical implications. (+info)

Effect of pilocarpine on visual acuity and on the dimensions of the cornea and anterior chamber. (3/841)

The effect of pilocarpine on visual acuity and on the dimensions of the cornea, anterior chamber, and lens were studied in two groups of subjects. Significant changes in ocular tension, corneal curvature, anterior chamber depth, and lens anterior radius were found in a group of 55 glaucomatous eyes as a result of pilocarpine treatment, but there was no change in corneal thickness. Out of 102 glaucomatous eyes 78 became relatively myopic, and this appears to be due to changes in the dimensions of the lens of the eye similar to those occurring in accommodation, as a result of the effect of the drug on the ciliary muscle. The effect of pilocarpine on anterior chamber depth, area, and volume was studied in 125 eyes using a photographic method, and a significant reduction in the dimensions of the anterior chamber was observed as a result of the administration of pilocarpine. A significant correlation between depth and volume was also noted and the implications of this are discussed. (+info)

Lens extraction with ultrasound. Experiments in rabbits. (4/841)

The extraction of the rabbit lens is described using a 25 G irrigating needle and a 22 G aspirating needle; at the latter's bevelled tip lens fragmentation occurs due to the longitudinal ultrasonic vibrations generated there--an 'acoustic horn' causes the tip to vibrate with large amplitudes. The use of small needles allows considerable manoeuvrability in the anterior chamber and usually eliminates the need for corneal suturing. Push-pull coupled syringes equate the volume of irrigation with that of aspiration. This procedure makes possible lens extraction through an aperture in the anterior capsule of the rabbit's lens and a similar machine is being constructed for trial on human cataract. (+info)

Latrunculin-A increases outflow facility in the monkey. (5/841)

PURPOSE: To determine the effect of Latrunculin (LAT)-A, a macrolide that binds to G-actin, which leads to the disassembly of actin filaments, on shape, junctions, and the cytoskeleton of cultured bovine aortic endothelial cells (BAECs) and on outflow facility in living monkeys. METHODS: Latrunculin-A dose-time-response relationships in BAECs were determined by immunofluorescence and phase contrast light microscopy, facility by two-level constant pressure anterior chamber perfusion. RESULTS: In BAECs, LAT-A caused dose- and incubation time- dependent destruction of actin bundles, cell separation, and cell loss. Cell-cell adhesions were more sensitive than focal contacts. Recovery was also dose- and time-dependent. In monkeys, exchange intracameral infusion and topical application of LAT-A induced dose- and time-dependent several-fold facility increases. The facility increase was completely reversed within several hours after drug removal. However, for at least 24 hours after a single topical LAT-A dose, perfusion with drug-free solution caused an accelerated increase in facility beyond that attributed to normal resistance washout. CONCLUSIONS: Pharmacological disorganization of the actin cytoskeleton in the trabecular meshwork by specific actin inhibitors like LAT-A may be a useful antiglaucoma strategy. (+info)

Effect of staurosporine on outflow facility in monkeys. (6/841)

PURPOSE: To determine the effect of the serine-threonine kinase inhibitor staurosporine on outflow facility in living monkeys. METHODS: Total outflow facility was determined by two-level constant pressure perfusion of the anterior chamber bilaterally before and after intracameral infusion of staurosporine or vehicle in opposite eyes. RESULTS: Intracameral staurosporine dose-dependently doubled outflow facility, with 0.1 microM, 1 microM, and 10 microM being subthreshold, effective, and maximal doses, respectively. At 50 microM, intracameral staurosporine was less effective than 10 microM on facility and induced corneal toxicity. CONCLUSIONS: The broad-spectrum protein kinase inhibitor staurosporine increases outflow facility in living monkeys, perhaps by affecting the trabecular meshwork cytoskeleton. (+info)

Epithelial ingrowth of anterior chamber and anterior surface of vitreous. (7/841)

This study is a case report of the histopathologic findings of the anterior chamber epithelial ingrowth in a patient who had penetrating injury in the right eye from an arrow approximately 20 years ago. The patient underwent the enucleation in the right eye due to pthisis bulbi and was fitted with a prosthetic eye. Specimens were prepared from the enucleated right eye for histopathologic observation using hematoxyllin-eosin to be observed under light microscopy. Epithelial ingrowth in the anterior chamber was noted in one layer or multi-layered epithelial cell growth. The ingrowth had spread to the posterior surface of the cornea to the anterior chamber angle, to the iris surface, and to the anterior surface of the vitreous. The finding suggests that epithelial ingrowth could invade even through a perforation site and spread wherever the cells could reach. (+info)

T cell immunity induced by allogeneic microglia in relation to neuronal retina transplantation. (8/841)

Microglia share a lineage relationship with bone marrow-derived monocytes/macrophages and dendritic cells, and their inclusion in retinal and brain transplants may function as "passenger leukocytes. " In other solid allografts, passenger leukocytes are the primary sources of immunogenicity, triggering alloimmune rejection. We have conducted a series of in vitro and in vivo studies examining the capacity of microglia cultured from forebrain to activate alloreactive T cells and to induce and elicit alloimmunity. Cultured microglia expressed class II MHC molecules and costimulatory molecules (B7-1, B7-2, and CD40), and they secreted IL-12. Cultured microglia injected s.c. into naive recipients induced allospecific delayed hypersensitivity and elicited delayed hypersensitivity directed at alloantigens. Cultured microglia differed from conventional APCs by secreting significant amounts of mature TGF-beta2, but smaller amounts of IL-12. Moreover, while both cultured microglia and conventional APC stimulated T cell proliferation in vitro, microglia directed the responding T cells toward the Th2 pathway in which IL-4, but not IL-2 and IFN-gamma, was secreted. The abilities of microglia to secrete TGF-beta2, to stimulate alloreactive Th2 cells, and to induce anterior chamber associated immune deviation when injected into the eye of naive allogeneic mice suggest that they are not typical passenger leukocytes. The unique functional properties of cultured microglia may account for the capacity of neonatal retinal tissue transplanted into the eye to alter the systemic alloimmune response in a manner that delays, but does not prevent, graft rejection. (+info)

Anterior chamber inflammation. *Raised intraocular pressure. *Punctate keratitis (small marks on the surface of the eye) ...

https://en.wikipedia.org/wiki/Pegaptanib

Many aphakic and pseudophakic IOLs such as anterior chamber IOLs or 3 piece posterior chamber IOLs can be used interchangeably ... Anterior chamber IOL (ACIOL). A less-common type of intraocular lens, which is sometimes used if a PCIOL is not an option for a ... placed in the anterior chamber. They are notorious[citation needed] for their negative impact on the corneal endothelial lining ... Posterior chamber IOL (PCIOL). This is by far the most common type of implanted lens after cataract surgery in the United ...

https://en.wikipedia.org/wiki/Intraocular_lens

"Gnathostomiasis of the anterior chamber". Indian Journal of Medical Microbiology. 25 (3): 276-8. doi:10.4103/0255-0857.34775. ... The posterior portion of the nematode is smooth while the anterior half is covered with fine leaf-like spines. The head is ...

https://en.wikipedia.org/wiki/Gnathostomiasis

Interior of anterior chamber of eye. The crystalline lens, hardened and divided. Section through the margin of the lens, ... The anterior surface is less curved than the posterior. In the adult, the lens is typically circa 10 mm in diameter and has an ... The lens is more flat on its anterior side than on its posterior side. The lens is also known as the aquula (Latin, a little ... The lens is part of the anterior segment of the human eye. In front of the lens is the iris, which regulates the amount of ...

https://en.wikipedia.org/wiki/Lens_(anatomy)

1. Lens, 2. Zonule of Zinn or Ciliary zonule, 3. Posterior chamber and 4. Anterior chamber with 5. Aqueous humour flow; 6. ... Anterior ones). 38. Lacrimal artery, 39. Ophthalmic vein, 40. Vorticose vein.. 41. Ethmoid bone, 42. Medial rectus muscle, 43. ... Anterior segment, 31. Posterior segment.. 32. Ophthalmic artery, 33. Artery and central retinal vein → 36. Blood vessels of the ... File:Schematic diagram of anterior segment human eye.svg. File:Diagram of human eye without labels.svg ...

https://ca.wikipedia.org/wiki/Fitxer:Schematic_diagram_of_human_eye_multilingual.svg

... in the anterior chamber. Report of two cases". Br J Ophthalmol. 59 (3): 166-67. doi:10.1136/bjo.59.3.166. PMC 1017374 . PMID ...

https://en.wikipedia.org/wiki/Loiasis

Granulomas also form in the anterior chamber. However purulent conjunctival discharge and hemorrhaging were not observed as ...

https://en.wikipedia.org/wiki/Emmonsia_parva

Puncture of anterior chamber in acute leprous inflammation. 1935 Japanese Leprosy Congress. Detection of leprosy bacilli in ... chamber fluid. 1936 Japanese Leprosy Congress Treatment of ulcer of cornea. 1937 Japanese Leprosy Congress. Intraocular ...

https://en.wikipedia.org/wiki/Koh_Yasuda

The anterior chamber drainage angle is then graded as a ratio between the peripheral anterior chamber depth and corneal ... The Van Herick technique is an eye examination method used to determine the size of the anterior chamber angle of the eye. ... The technique also may be considered of inadequate scope, as it only provides an estimate of the anterior chamber angle (ACA) ... Most of the sources of variability may be simply overcome with the direct measurement of the depth of the anterior chamber ...

https://en.wikipedia.org/wiki/Van_Herick_technique

ISBN 978-0-7216-2921-6. Osuntokun O, Olurin O (March 1975). "Filarial worm (Loa loa) in the anterior chamber. Report of two ...

https://en.wikipedia.org/wiki/Loa_loa_filariasis

Once in the anterior chamber and while firmly holding the lens with forceps, temporal and nasal iris tissue is enclavated with ... Anterior chamber depth (ACD, i.e. the distance between the crystalline lens and cornea including the corneal thickness) is ... Multiple studies have shown a 12-17 µm/year decrease in the anterior chamber depth with aging. If a phakic IOL patient is ... Phakic IOLs are designed to correct high myopia ranging from −5 to −20 D if the patient has enough anterior chamber depth (ACD ...

https://en.wikipedia.org/wiki/Phakic_intraocular_lens

A large hyphema may require careful anterior chamber washout. Rebleeds may require additional intervention and therapy. Later, ... Chorich Lj, 3rd; Davidorf, FH; Chambers, RB; Weber, PA (1998). "Bungee cord-associated ocular injuries". American Journal of ...

https://en.wikipedia.org/wiki/Iridodialysis

MPC is characterized by vitritis and anterior chamber inflammation. Decreased vision due to vitreous inflammation may occur. ...

https://en.wikipedia.org/wiki/White_dot_syndromes

The attack may be associated with anterior chamber flare. These symptoms disappear in 1 to 2 days, but blurred vision may last ...

https://en.wikipedia.org/wiki/Keratoendotheliitis_fugax_hereditaria

Brain, muscle, Eye (Cysts in conjuntiva/anterior chamber/sub-retinal space) stool, blood Asia, Africa, South America, Southern ...

https://en.wikipedia.org/wiki/List_of_parasites_of_humans

Iritis is the inflammation of the anterior chamber and iris. Iridocyclitis is inflammation of iris and the ciliary body with ... In anterior uveitis, no associated condition or syndrome is found in approximately one-half of cases. However, anterior uveitis ... presence of cells and flare in the anterior chamber, and keratic precipitates ("KP") on the posterior surface of the cornea. In ... In western countries, anterior uveitis accounts for between 50% and 90% of uveitis cases. In Asian countries the proportion is ...

https://en.wikipedia.org/wiki/Uveitis

... and an anomalous cleavage of the anterior chamber of the eye. The disorder is similar to Robinow syndrome except for anterior ... Greenstein, R.M.; Weinbaum, P.J.; Poole, A.E. (July 1988). "Autosomal recessive Robinow-like syndrome with anterior chamber ... chamber anomalies and, in one case, hydrocephalus. ...

https://en.wikipedia.org/wiki/Saal_Greenstein_syndrome

The Fate of Skin Homographs Transplanted to the Brain, to Subcutaneous Tissue, and to the Anterior Chamber of the Eye". British ... This is known as Anterior Chamber Associated Immune Deviation (ACAID). Sympathetic ophthalmia is a rare disease which results ... Research suggests that the exploitation of anterior chamber-associated immune deviation (ACAID), aqueous humor and its anti- ... Streilein JW, Stein-Streilein J (2002). "Anterior chamber associated immune deviation (ACAID): regulation, biological relevance ...

https://en.wikipedia.org/wiki/Immune_privilege

Its anterior third projects freely into the anterior vaginal chamber. Its walls are comparatively thick; internally they are ... The anterior portion of the vagina forms a wide chamber, closed posteriorly by a valve-like papillar structure; the interior ... In Paryphanta busbyi the anterior vaginal chamber doubtless undergoes complete eversion, and the vaginal papilla will be thrust ... From the anterior end of each gland proceeds a small salivary duct, which enters the buccal cavity a little below the ...

https://en.wikipedia.org/wiki/Paryphanta_busbyi

ISBN 978-0-323-05714-1. Scheie, Harold G. (1957). "Width and Pigmentation of the Angle of the Anterior Chamber". Archives of ...

https://en.wikipedia.org/wiki/Schwalbe's_line

ISBN 978-1-4051-5044-6 Gonioscopy of the anterior chamber angle Gonioscopy of the anterior chamber angle. Labeled structures: 1 ... a protrusion of the sclera into the anterior chamber. It is the origin of the longitudinal and circular fibres (which swerve ... Schwalbe's line, 2. Trabecular meshwork (TM), 3. Scleral spur, 4. Ciliary body, 5. Iris Anterior chamber angle cross-section ...

https://en.wikipedia.org/wiki/Scleral_spur

The chamber in the posterior domed-portion was 10.3 meters in length by 1.8 meters wide. The anterior chamber was 2.7 meters ... The tumulus had two vertical burial chambers arranged parallel to the main axis, one on each portion of the mound. Both ... ten meters in height and a 26 meter long anterior rectangular portion, five meters in height, and is orientated north-northeast ... chambers were lined with split andesite stone blocks, and were painted in vermillion. ...

https://en.wikipedia.org/wiki/Senryū-Shōgunzuka_Kofun

The ingress chamber is anatomically anterior and the egress chamber is posterior. Within Ostreoidea, the degree of attachment ... This is the posterior of the ancestral pair; the anterior muscle is not present in post-larval stages. The adductor is divided ... This forms two chambers, one on either side of the visceral mass. ...

https://en.wikipedia.org/wiki/Ostreoidea

It causes shallowing of the anterior chamber and leads to transient myopia. It lowers IOP by about 20%. Carbonic Anhydrase can ...

https://en.wikipedia.org/wiki/Dorzolamide

Blood in the anterior chamber of the eye is known as hyphema. Severe hyphema covering pupillary area can cause sudden decrease ...

https://en.wikipedia.org/wiki/Acute_visual_loss

... the military ophthalmologist may conduct an anterior chamber washout to clear hyphemas. However, reconstruction of the anterior ... Application of the Seidel Test in Zone I will rule out seepage of the anterior chamber through a corneal perforation, while ... The Seidel test may be used to evaluate the status of the anterior chamber, thereby determining the presence of corneal ... perforation and pathological anterior chamber leakage. Zone II: region designated by the anterior chamber, lens, and pars ...

https://en.wikipedia.org/wiki/Blast-related_ocular_trauma

Corneal edema and penetrating keratoplasty after anterior chamber phakic intraocular lens implantation. J Cat Refract Surg 2005 ... Anterior Segment Reconstruction Following Ocular Trauma. Int. Ophth. Clin. 1988;28:57-68. Kenyon KR & Hersh PS. Anterior ... Penetrating keratoplasty and anterior segment reconstruction for severe ocular trauma. German Journal of Ophthal. 1994;3:90-99 ... Penetrating Keratoplasty and Anterior Segment Reconstruction for Severe Ocular Trauma. Ophthal. 1992;99:396-402. Hersh PS, ...

https://en.wikipedia.org/wiki/Peter_Hersh

This is useful in enabling immediate visualization of the anterior chamber angle. Trabeculotomy-trabeculectomy can also be done ...

https://en.wikipedia.org/wiki/Buphthalmos

The aqueous humor then flows through the pupil into the anterior chamber. The ciliary body is attached to the lens by ... The ciliary body is a ring-shaped thickening of tissue inside the eye that divides the posterior chamber from the vitreous body ... ATPase enzyme creating an osmotic gradient for the passage of water into the posterior chamber) and twenty percent is produced ... and these secrete aqueous humor into the posterior chamber. ...

https://en.wikipedia.org/wiki/Ciliary_body

"Ring melanoma of the anterior chamber angle: a report of fourteen cases". Am J Ophthalmol. 132 (3): 336-42. doi:10.1016/s0002- ... Kumar H, Honavar SG, Vajpayee RB (1994). "Nd:YAG laser sweeping of the anterior surface of an intraocular lens: a new ... Rao R, Honavar SG, Mulay K, Reddy VAP (2018). "Eye salvage in diffuse anterior retinoblastoma using systemic chemotherapy with ... S2CID 21592328.CS1 maint: multiple names: authors list (link) Vajpayee RB, Taherian K, Honavar SG, Negi A (1995). "Anterior ...

https://en.wikipedia.org/wiki/Santosh_G._Honavar

Chambers 21st Century Dictionary Archived 24 November 2007 at the Wayback Machine. (retrieved 19 October 2007 ) ... the head and foot are at one end of an elongated body and function as the anterior (front) of the animal. The head includes the ... Extensive connective tissue lattices support the respiratory muscles and allow them to expand the respiratory chamber.[37] The ...

https://en.wikipedia.org/wiki/Octopoda

Talk:Anterior chamber of eyeball. *Talk:Anterior commissure. *Talk:Anterior compartment of the forearm ...

https://en.wikipedia.org/wiki/Category:Mid-importance_Anatomy_articles

sclera, and anterior chamber. *Glaucoma surgery: Trabeculectomy. *Iridectomy. Lens. *Phacoemulsification. *Cataract surgery ...

https://en.wikipedia.org/wiki/Ishihara_Test

For symptomatic permanent tooth, root canal treatment is often challenging due to pulp chamber is filled with calcified ... Otuyemi OD (June 1994). "Traumatic anterior dental injuries related to incisor overjet and lip competence in 12-year-old ... material and the 'drop off' sensation of entering a pulp chamber will not occur.[38] ...

https://en.wikipedia.org/wiki/Dental_trauma

Chambers. Right heart. *(venae cavae, coronary sinus) → right atrium (atrial appendage, fossa ovalis, limbus of fossa ovalis, ...

https://en.wikipedia.org/wiki/Interatrial_sulcus

The fish had a long rear portion while the front was short; the orbital vacuities were thus located towards the anterior end. ... Early tetrapods probably had a three-chambered heart, as do modern amphibians and many reptiles, in which oxygenated blood from ...

https://en.m.wikipedia.org/wiki/Tetrapod

An earthworm has no teeth, so it swallows grit to help grind food in its multi-chambered gut. As an earthworm burrows and feeds ... The average earthworm is a reddish brown color, with a pointed posterior and anterior end. There are no eyes or other ...

https://simple.wikipedia.org/wiki/Earthworms

8 incisors are anterior teeth, 4 in the upper arch and 4 in the lower. Their function is for shearing or cutting food during ... The bulk of the crown is composed of dentin, with the pulp chamber within. The crown is enclosed within bone before the tooth ... On anterior teeth, they are located on the mesial and distal borders of the lingual surface; on posterior teeth, they are ... Mammelons are usually found as three small bumps on the incisal edges of anterior teeth. They are the remnants of three lobes ...

https://en.m.wikipedia.org/wiki/Dental_anatomy

... is a circular lymphatic-like vessel in the eye that collects aqueous humor from the anterior chamber and ... Anterior part of the human eye, with Canal of Schlemm at lower right. ...

https://en.wikipedia.org/wiki/Canal_of_Schlemm

Shock chamber. Antitachycardia pacing chamber. Tachycardia detection. Antibradycardia pacing chamber O = None. O = None. E = ... either in the anterior/lateral position or the anterior/posterior position. The rescuer selects the pacing rate, and gradually ... Single-chamber pacemaker. In this type, only one pacing lead is placed into a chamber of the heart, either the atrium or the ... Dual-chamber pacemaker. Here, wires are placed in two chambers of the heart. One lead paces the atrium and one paces the ...

https://en.m.wikipedia.org/wiki/Artificial_cardiac_pacemaker

During expiration, oxygen poor air flows to the anterior air sacs[62] and is expelled by the action of the expiratory muscles. ... The AV node connects the atrial and ventricular chambers. It functions to carry the electrical impulse from the atria to the ... The common ostrich heart is a closed system, contractile chamber. It is composed of myogenic muscular tissue associated with ... The tip of the tongue then lies anterior to the choanae, excluding the nasal respiratory pathway from the buccal cavity.[61] ...

https://en.m.wikipedia.org/wiki/Common_ostrich

Anterolateral thoracotomy is performed upon the anterior chest wall; left anterolateral thoracotomy is the incision of choice ... or for access to the thoracic aorta or the anterior spine (the latter may be necessary to access tumors in the spine). The ... provides wide access to the mediastinum and is the incision of choice for most open-heart surgery and access to the anterior ... thoracotomy was devised to give rapid access to the heart and pericardium through an incision that consists of an anterior ...

https://en.wikipedia.org/wiki/Thoracotomy

sclera, and anterior chamber. *Glaucoma surgery: Trabeculectomy. *Iridectomy. Lens. *Phacoemulsification. *Cataract surgery ...

https://en.wikipedia.org/wiki/Keratomileusis

Chambers. Right heart. *(venae cavae, coronary sinus) → right atrium (atrial appendage, fossa ovalis, limbus of fossa ovalis, ... The tricuspid valve has anterior, posterior, and septal cusps; and the mitral valve has just anterior and posterior cusps. ... The pulmonary valve has left, right, and anterior cusps.[4] The aortic valve has left, right, and posterior cusps.[5] ... There are anterior, posterior, and two lateral thickenings. A septum begins to form between what will later become the ...

https://en.wikipedia.org/wiki/Heart_valve

The atrium and ventricles of each side are separated by atrioventricular valves which prevent back flow from one chamber to the ... but movement is reduced in the anterior thoracic vertebrae and absent in the later vertebrae.[63] The last few are fused with ... The avian circulatory system is driven by a four-chambered, myogenic heart contained in a fibrous pericardial sac. This ... a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the 5 cm (2 in) bee ...

https://en.m.wikipedia.org/wiki/Bird

Multi-chambered burrows have been found, containing as many as 20 skeletons of the Early Triassic cynodont Trirachodon; the ... The anterior (forward) part of the zygomatic arch mostly consists of the maxilla (upper jawbone) rather than the jugal, a small ...

https://en.wikipedia.org/wiki/Evolution_of_mammals

a b c d Donald, J. (1880). Chambers's etymological dictionary of the English language.'' London/Edinburgh: W. & R. Chambers. ... Serratus anterior has a long attachment on the anterior lip. Three muscles insert along the posterior lip, the levator scapulae ... The upper picture is an anterior (from the front) view of the thorax and shoulder girdle. The lower picture is a posterior ( ... The two muscles most commonly inhibited during this first part of an overhead motion are the serratus anterior and the lower ...

https://en.m.wikipedia.org/wiki/Neck_of_the_scapula

The idea is to force abnormal electrical signals to move along one, uniform path to the lower chambers of the heart (ventricles ... characterized by the rapid and irregular beating of the atrial chambers of the heart.[11] It often begins as short periods of ... The risk of a blood clot forming in the left atrial chamber of the heart, breaking off, and then traveling in the bloodstream ...

https://en.wikipedia.org/wiki/Atrial_fibrillation

The second chamber is larger and is where digestion takes place. Undigested squid beaks accumulate in the second chamber - as ... The anterior wall is smooth. The knobbly surface reflects sound waves that come through the spermaceti organ from the phonic ... Similar to ruminants the sperm whale has a four-chambered stomach. The first secretes no gastric juices and has very thick ...

https://en.wikipedia.org/wiki/Sperm_whale

Some species moult within specially prepared chambers of soil or silk,[39] and may also shelter in these during wet weather, ... Anterior anatomy of a generalized helminthomorph millipede. Millipedes come in a variety of body shapes and sizes, ranging from ...

https://en.wikipedia.org/wiki/Millipede

The front (anterior) of the eye is on the left. Light (from the left) passes through several transparent nerve layers to reach ... Anterior segment. *Adnexa. *Fibrous tunic. *Anterior chamber. *Aqueous humour. *Iris. *Posterior chamber ...

https://en.wikipedia.org/wiki/Retina

At the anterior end, the mouth is surrounded by a ring of tentacles which are usually retractable into the mouth. These are ... The intestine is typically long and coiled, and loops through the body three times before terminating in a cloacal chamber, or ... The anterior end of the animal, containing the mouth, corresponds to the oral pole of other echinoderms (which, in most cases, ... Anterior to the ossicles lie further muscles, contraction of which cause the introvert to retract.[11] ...

https://en.m.wikipedia.org/wiki/Sea_cucumbers

The third chamber is the suction control chamber. The height of the water in this chamber regulates the negative pressure ... the anterior border of latissimus dorsi and a horizontal line superior to the nipple.[21] More specifically, the tube is ... The first chamber allows fluid that is drained from the chest to be collected. The second chamber functions as a "water seal", ... Air bubbling through the water seal chamber is usual when the patient coughs or exhales but may indicate, if continual, a ...

https://en.wikipedia.org/wiki/Chest_tube

The tricuspid valve has anterior, posterior, and septal cusps; and the mitral valve has just anterior and posterior cusps. ... which are between the upper chambers (atria) and the lower chambers (ventricles). ... The pulmonary valve has left, right, and anterior cusps.[4] The aortic valve has left, right, and posterior cusps.[5] ... There are anterior, posterior, and two lateral thickenings. A septum begins to form between what will later become the ...

https://en.m.wikipedia.org/wiki/Heart_valve

In bony fish, the gills lie in a branchial chamber covered by a bony operculum. The great majority of bony fish species have ... In fish, the divisions of the small intestine are not clear, and the terms anterior or proximal intestine may be used instead ... In most fish, the heart consists of four parts, including two chambers and an entrance and exit. The first part is the sinus ... The heart of fish is therefore only a single pump (consisting of two chambers). Fish have a closed-loop circulatory system. The ...

https://en.wikipedia.org/wiki/Fish_physiology

Chambers. Right heart. *(venae cavae, coronary sinus) → right atrium (atrial appendage, fossa ovalis, limbus of fossa ovalis, ... The anterior cusp covers approximately two-thirds of the valve (imagine a crescent moon within the circle, where the crescent ... Anterior (frontal) view of the opened heart. White arrows indicate normal blood flow. (Mitral valve labeled at center right.) ... Operative view of the mitral valve with a chordal rupture "fail" of the anterior leaflet ...

https://en.wikipedia.org/wiki/Mitral

The anterior segment, closest to the head, is the prothorax, with the major features being the first pair of legs and the ... Dragonfly naiads use jet propulsion, forcibly expelling water out of their rectal chamber.[107] Some species like the water ... Envaginations at the anterior end of the hindgut form the Malpighian tubules, which form the main excretory system of insects. ... The middle segment is the mesothorax, with the major features being the second pair of legs and the anterior wings. The third ...

https://en.m.wikipedia.org/wiki/Insecta

Three distinct sets of organs perform respiration - the anterior air sacs (interclavicular, cervicals, and anterior thoracics ... A reduction in the adductor chambers has also occurred [11] These are all conditions seen in the juvenile form of their ... Birds have a four-chambered heart,[39] in common with mammals, and some reptiles (mainly the crocodilia). This adaptation ... So, during inhalation, both the posterior and anterior air sacs expand,[34] the posterior air sacs filling with fresh inhaled ...

https://en.wikipedia.org/wiki/Bird_skeleton

... The anterior chamber is that section of the eye that lies between the cornea and the iris. The iris divides ... into an anterior chamber and a posterior chamber (between the iris and the lens). ... the space between the cornea and the lens, which is called the anterior cavity, ...

https://www.innerbody.com/anatomy/nervous/anterior-chamber

... to be positioned substantially in the posterior chamber of the eye while the lateral legs extend in the anterior chamber of the ... to be positioned substantially in the posterior chamber of the eye while the lateral legs extend in the anterior chamber of the ... Anterior-chamber intraocular prosthetic lens. US4681585 *. 13 Mar 1986. 21 Jul 1987. Intermedics Intraocular, Inc.. Intraocular ... In these prior art implants, a lens is positioned in the anterior chamber of the eye spanning the pupil, that is, resting on ...

http://www.google.com.au/patents/US4535488

A thin foldable intraocular implant specifically configured for installation into the anterior chamber of a phakic or ... Whether the IOL is installed in the posterior chamber of the eye in lieu of the removed cataracted lens, or in the anterior ... Due to the fact that prior art IOLs specially those installed in the anterior chamber must be precisely tailored to the size of ... 1. Accordingly, the median portion and the lateral portion with their bent flaps 8 form a vault that spans the anterior chamber ...

http://www.freepatentsonline.com/y2009/0182422.html

... case-control study examined the relationship between anterior chamber sterilization and vitreous positivity rate in cultures ... The anterior chamber and vitreous displayed poor concordance. As a result, anterior chamber findings were in no way helpful at ... This retrospective, case-control study examined the relationship between anterior chamber sterilization and vitreous positivity ...

https://www.aao.org/editors-choice/anterior-chamber-sterilization-may-not-prevent-end

... Jacky W. Y. Lee, Gordon S. K. Yau, Tiffany T. Y ... J. Caprioli, G. L. Spaeth, and R. P. Wilson, "Anterior chamber depth in open angle glaucoma," British Journal of Ophthalmology ... D. Wang, M. Qi, M. He, L. Wu, and S. Lin, "Ethnic difference of the anterior chamber area and volume and its association with ... S. W. Cheung, R. Chan, R. C. Cheng, and P. Cho, "Effect of cycloplegia on axial length and anterior chamber depth measurements ...

https://www.hindawi.com/journals/tswj/2014/538283/ref/

Home , Published Ahead-of-Print , Silicone Oil Removal From the Anterior Chamber Using Dispers... ... Silicone Oil Removal From the Anterior Chamber Using Dispersive Viscoelastic. Iaboni, Douglas S. M., MSc*; Seamone, Mark E., ...

https://journals.lww.com/retinajournal/Citation/publishahead/Silicone_Oil_Removal_From_the_Anterior_Chamber.96946.aspx

Eye, Anterior chamber - Proteinaceous fluid in a female F344/N rat from a chronic study. Anterior chamber proteinaceous fluid ( ... Proteinaceous fluid in the anterior chamber should be diagnosed as "Eye, Anterior chamber - Proteinaceous fluid" and assigned a ... If anterior chamber proteinaceous fluid is part of a more dispersed inflammatory process in the eye, it need not be diagnosed ... Eye, Anterior chamber - Proteinaceous fluid in a female F344/N rat from a chronic study. There are accumulations of homogeneous ...

https://ntp.niehs.nih.gov/nnl/special_senses/eye/acprotfl/index.htm

A surgical video demonstrating a technique for removal of an anterior chamber parasite. ... Anterior Chamber Worm. Chris Kurz MD, Majid Moshirfar MD, Mark Mifflin MD. Channels: General , Posted 5/27/2009 ... What kind of worm is it? How did it get into the Anterior Chamber? ... A surgical video demonstrating a technique for removal of an anterior chamber parasite. ...

https://eyetube.net/video/hoopih/

To compare anterior chamber depth (ACD), representing the distance between the anterior corneal surface and anterior lens ... Comparison of Anterior Chamber Depth Measurements from the Galilei Dual Scheimpflug Analyzer with IOLMaster. Roma P. Patel1 and ... A retrospective review of 65 individual patient eyes with normal anterior segments, and no prior ocular surgery was performed. ...

https://www.hindawi.com/journals/joph/2012/430249/abs/

Bilateral acute anterior uveitis: a rare ocular side effect of erlotinib Sarah Chan, Elizabeth Ahern, Sarah Chaudhry, Brett ... Optic shrinkage and retraction in opacified hydrophilic acrylic intraocular lens: an anterior segment optical CT-based ... Transscleral cyclophotocoagulation as primary management in a nanophthalmic eye with anterior uveitis and secondary mixed ...

https://casereports.bmj.com/keyword/anterior-chamber

... and an extremely shallow anterior chamber. The axial length is 21.34 mm. ...

https://www.aao.org/annual-meeting-video/cataract-spotlight-2017-case-6-small-pupil-shallow

The anterior chamber angle is the structure which determines the anterior chamber depth. An extremely narrow anterior chamber ... The anterior chamber angle is a part of the eye located between the cornea and iris which contains the trabecular meshwork. The ...

https://en.wikipedia.org/wiki/Anterior_chamber_angle

AC = anterior chamber.. Discussion. Renewed interest in the implantation of phakic anterior chamber IOLs in highly myopic eyes ... providing 360-degree coverage of the anterior chamber. To perform the central measurements, a section of the anterior chamber ... The artifactual elevation of the anterior surface of the crystalline lens (arrows) can be seen. AC = anterior chamber. ... This study analyzed the anatomic relationships between the ZSAL-4 anterior chamber phakic IOL and anterior segment structures ...

https://journals.lww.com/jcrs/Fulltext/2001/10000/Ultrasound_biomicroscopy_of_ZSAL_4_anterior.24.aspx

Gonioscopy of the anterior chamber angle Gonioscopy of the anterior chamber angle. Labeled structures: 1. Schwalbes line, 2. ... One peculiar feature of the anterior chamber is dampened immune response to allogenic grafts. This is called anterior chamber ... This ratio is linearly correlated with the depth of the anterior chamber with the following equation: Anterior chamber depth ( ... Hyphema, anterior uveitis and glaucoma are three main pathologies in this area. In hyphema, blood fills the anterior chamber as ...

https://en.wikipedia.org/wiki/Anterior_chamber_of_eyeball

... BMC Dev Biol. 2001;1:3. doi: 10.1186/1471- ... Anterior Chamber / cytology* * Anterior Chamber / embryology* * Anterior Chamber / growth & development * Anterior Chamber / ...

https://pubmed.ncbi.nlm.nih.gov/11228591/?dopt=Abstract

... study is to generate reference values for anterior chamber morphometrics to facilitate the interpretation of anterior chamber ... Keywords: reference value, anterior chamber, optical coherence tomography, Caucasian ... the mean anterior chamber depth (ACD) was 2.75±0.39 mm and the mean lens vault (LV) was 0.44±0.30 mm. A smaller temporal TIA500 ... shallower ACD and higher LV were found in female and hyperopic subjects.Conclusion: Reference values for anterior chamber ...

https://www.dovepress.com/reference-values-for-anterior-chamber-morphometrics-with-swept-source--peer-reviewed-article-OPTH

anterior chamber tap. Among the spectrum of infectious keratites, acanthamoeba keratitis (AK) represents one of the most ... An anterior uveitis and/or a hypopyon may be present too. The diagnosis is usually made by scraping and culturing the corneal ...

http://bjo.bmj.com/content/90/5/649

Measuring Anterior Chamber Inflammation After Cataract Surgery: A Review of the Literature Focusing on the Correlation with ... Keywords: anterior chamber inflammation, cataract surgery, clinical grading, laser flare photometry, anterior segment optical ... Measuring Anterior Chamber Inflammation After Cataract Surgery: A Review of the Literature Focusing on the Correlation with ... However, only a few studies investigated the potential correlation between anterior chamber (AC) inflammation and the risk of ...

https://www.dovepress.com/measuring-anterior-chamber-inflammation-after-cataract-surgery-a-revie-peer-reviewed-article-OPTH

To quantify the effects of cataract surgery on the anterior chamber topography in patients with angleclosure glaucoma (PACG), ... anterior chamber depth (ACD), anterior chamber volume (ACV), anterior chamber angle (ACA) and central corneal thickness (CCT) ... determined by a shallower anterior chamber. Thus, at the last follow-up session, the anterior chamber morphology became very ... Anterior Chamber Morphometry before and after Cataract Surgery Alina-Dana Baxant1*, Jara Hornová1, Pavel Studený1, Jana Vránová ...

https://www.omicsonline.org/open-access/anterior-chamber-morphometry-before-and-after-cataract-surgery-2155-9570-1000548.php?aid=72551

Incision Procedures on the Anterior Chamber of the Eye - Codify by AAPC ... Procedures on the Anterior Chamber of the Eye, ... Procedures on the Anterior Chamber of the Eye. Incision ... CPT® 65880, Under Incision Procedures on the Anterior Chamber of the Eye. The Current Procedural Terminology (CPT®) code 65880 ... Incision Procedures on the Anterior Chamber of the Eye. ... Surgical Procedures on the Anterior Segment of the Eye. ...

https://www.aapc.com/codes/cpt-codes/65880

In Experiment 1, IOP was recorded while irrigating the anterior chamber (AC), during iH, and during phacoemulsification and ... Influence of irrigation dynamic pressure-assisted hydrodissection on intraocular pressure and the posterior chamber-anterior ... Influence of elevated intraocular pressure on the posterior chamber-anterior hyaloid membrane barrier during cataract ... and the posterior chamber-anterior hyaloid membrane (PC-AHM) barrier in porcine eyes. ...

https://link.springer.com/article/10.1007%2Fs10384-018-00646-3

Part I. A new algorithm of sulcus ciliaris diameter assessment using anterior segment optical coherence tomography in DOAJ. ... Posterior chamber phakic IOL sizing. Part I. A new algorithm of sulcus ciliaris diameter assessment using anterior segment ... The UBM analysis of the anterior segment anatomy showed a correspondence of the peripheral iris pigment layer edge (IPE) to the ... To study the effectiveness of a new algorithm in measurement of sulcus ciliaris diameter by the method of anterior segment ...

https://doaj.org/article/46e0246f7ee9429eadb1eedae3a8d843

To study a position of the posterior chamber phakic intraocular lens (PIOL) with a total size selection using ultrasound bio- ... Posterior chamber phakic IOL sizing. Part II. Clinical effectiveness of sulcus ciliaris diameter assessment using anterior ... To study a position of the posterior chamber phakic intraocular lens (PIOL) with a total size selection using ultrasound bio- ... Retrospective analysis of data from patients who underwent surgical correction of high myopia with posterior chamber PIOL ICM ...

https://doaj.org/article/5c2b12ce367e438682cd31826f5d2db4

Journal Article: Measurement of anterior chamber diameter and biometry of anterior segment by Scheimpflug slitlamp photography ... Title: Measurement of anterior chamber diameter and biometry of anterior segment by Scheimpflug slitlamp photography ... This will enable the surgeon to determine the diameter and order an anterior chamber IOL of a specified size prior to surgery. ... The authors have devised an automated program to analyze the negatives and provide direct anterior chamber diameter ...

https://www.osti.gov/scitech/biblio/5021232

Methods of assessing the anterior chamber. Much of the anterior chamber is readily visible with the slit lamp biomicroscope. ... The average adult eye has a chamber depth of 3.15 mm The chamber shallows by 0.01 mm per year. An eye with an anterior chamber ... 2) Slit lamp estimation of the anterior chamber "angle" (e.g. Van Herrick) ... 3) Slit lamp estimation of the anterior chamber depth ( or with ultrasound) ...

http://www.academy.org.uk/lectures/barnard12.htm

Anterior Chamber Width Measurement by Optical Coherence Tomography J.A. Goldsmith; Y. Li; M.R. Chalita; V. Westfall; C. Patel; ... Anterior Chamber Width Measurement by Optical Coherence Tomography You will receive an email whenever this article is corrected ... Abstract: : Purpose: Measurement of anterior chamber (AC) width with optical coherence tomography (OCT). Methods: A high-speed ... J.A. Goldsmith, Y. Li, M.R. Chalita, V. Westfall, C. Patel, A.M. Rollins, J. Izatt, D. Huang; Anterior Chamber Width ...

https://iovs.arvojournals.org/article.aspx?articleid=2415405

Anterior chamber of eye structure. Known as: Chambers, Anterior, Anterior Chamber of the Eye, anterior chamber eye (More). ... Anterior chamber width measurement by high-speed optical coherence tomography.. *Jason A Goldsmith, Yan Li, +5 authors David ... Anterior chamber measurements using Pentacam rotating Scheimpflug camera.. *Tanja M Rabsilber, Ramin Khoramnia, Gerd U Auffarth ... OBJECTIVE To measure anterior chamber (AC) width and other dimensions relevant to the sizing of phakic intraocular lenses (IOLs ...

https://www.semanticscholar.org/topic/Anterior-chamber-of-eye-structure/6084

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.. ...

https://bjo.bmj.com/content/40/4/245

what is the name of condition that collapses the anterior chamber of the eye? Answered by Dr. Beth Friedland: Hypotony: If the ... anterior chamber deep and quiet. A 38-year-old member asked:. what is the name of condition that collapses the anterior chamber ... The anterior chamber fluid, or aqueous humor, is produced by the ciliary processes behind the iris and is very similar to fluid ... The anterior chamber separates the cornea from the lens, both of which work together to focus light onto the retina. The ...

https://www.healthtap.com/q/anterior-chamber-deep-and-quiet/

The anterior chamber of the eye is lined with corneal endothelial cells, which are terminally differentiated cells that are ... Isolation and characterization of a unique natural killer cell inhibitory factor present in the anterior chamber of the eye.. R ... The aqueous humor (AH) that fills the anterior chamber of the eye and bathes the corneal endothelial surface contains numerous ... Isolation and characterization of a unique natural killer cell inhibitory factor present in the anterior chamber of the eye. ...

https://www.jimmunol.org/content/156/8/2667

The aim of this study is to generate reference values for anterior chamber morphometrics to facilitate the interpretation of anterior chamber images acquired with swept-source optical coherence tomography (SS-OCT) in a Caucasian population. (dovepress.com)
To study the effectiveness of a new algorithm in measurement of sulcus ciliaris diameter by the method of anterior segment optical coherence tomography (AS-OCT). Material and methods. (doaj.org)
To study a position of the posterior chamber phakic intraocular lens (PIOL) with a total size selection using ultrasound bio-microscopy (UBM) and a new algorithm based on anterior segment optical coherence tomography (AS OCT) in patients with high myopia. (doaj.org)
Detection of primary angle closure using anterior segment optical coherence tomography in Asian eyes. (semanticscholar.org)
We document our latest work in developing a new eye model with a solid-state cornea and liquid filled anterior chamber designed for demonstrating, validating and comparing anterior chamber ophthalmic Optical Coherence Tomography (OCT) instruments, corneal topographers, and Scheimpflug cameras. (spie.org)
To use Fourier-domain optical coherence tomography (OCT) to measure the angle opening distance at Schwalbe's line (AOD-SL) and determine its value in anterior chamber angle assessment. (ovid.com)
To measure anterior chamber depth (ACD) with an anterior segment optical coherence tomography (AS-OCT) and a standard ultrasonic (US) axial scan (A-scan) device using an immersion technique and to assess repeatability, reproducibility, and correlations of the measurements. (eurekamag.com)
Fingerprint Dive into the research topics of 'Development of a corneal tissue phantom for anterior chamber optical coherence tomography (AC-OCT)'. Together they form a unique fingerprint. (elsevier.com)
Development of a corneal tissue phantom for anterior chamber optical coherence tomography (AC-OCT) . In Design and Performance Validation of Phantoms Used in Conjunction with Optical Measurement of Tissue V (Vol. 8583). (elsevier.com)
To evaluate changes in anterior chamber depth (ACD) and angle width induced by phacoemulsification and intraocular lens (IOL) implantation in eyes with glaucoma, using anterior segment optical coherence tomography (AS-OCT). (ekjo.org)
Recently, anterior segment optical coherence tomography (AS-OCT) has been used for quantitative evaluation of anterior segment configurations. (ekjo.org)

The anterior chamber is that section of the eye that lies between the cornea and the iris. (innerbody.com)
The iris divides the space between the cornea and the lens, which is called the anterior cavity, into an anterior chamber and a posterior chamber (between the iris and the lens). (innerbody.com)
The aspiration tube and an irrigation tube may be coupled to an anterior chamber of a cornea during a phaco procedure. (google.com)
The anterior chamber angle is a part of the eye located between the cornea and iris which contains the trabecular meshwork. (wikipedia.org)
The anterior chamber separates the cornea from the lens, both of which work together to focus light onto the retina. (healthtap.com)
4 , 5 However, such a bandpass filter at certain frequencies is not desirable for the measurement of the minute OP in the anterior chamber (termed as aOP and defined as the relative motion between cornea and crystalline lens). (spiedigitallibrary.org)
Located in the notch just anterior to the scleral spur between the cornea and the iris. (utah.edu)
By two-dimensional ultrasounography can be seen internal structures of the eye such as cornea, anterior chamber , ciliary body, lens, vitreous chamber and then can be evaluated them [3,9,12]. (freethesaurus.com)
The cornea in the left eye was transparent and did not have lesions or edema, and the anterior chamber did not show an inflammatory reaction. (freethesaurus.com)
They discuss corneal hysteresis and biomechanical properties of the normal cornea, physiology, the corneal endothelium, imaging, the new generation of operating microscope, new instrumentation, the artificial anterior chamber , and the definition, terms, and classifications of lamellar corneal surgery. (freethesaurus.com)
In case of zonulo-capsular disruption (zonular defect, artisan IOL, aphakia, etc.), retinal tamponading agents could invade the anterior chamber during silicone oil injection or could flatten an artisan IOL against the cornea during gas exchange. (evrs.eu)
After making the corneal graft using an artificial anterior chamber, crescent knife and cornea dissector, the keratoplasty proceeded using the graft. (bvsalud.org)
A lens with one or more tilted mirrors that is applied to the cornea for use in visualizing the anterior chamber of the eye during gonioscopy. (thefreedictionary.com)

An extremely narrow anterior chamber angle is a feature of angle closure glaucoma. (wikipedia.org)
Hyphema, anterior uveitis and glaucoma are three main pathologies in this area. (wikipedia.org)
Determining the anterior chamber depth (ACD) is important in estimating the risk of angle closure glaucoma. (wikipedia.org)
Glaucoma Hyphema Hypopyon Intraocular pressure Ocular hypertension Anterior chamber angle cross-section imaged by an SD-OCT. Gonioscopy of the anterior chamber angle Gonioscopy of the anterior chamber angle. (wikipedia.org)
Exacerbation of chronic glaucoma or acute glaucoma is occasionally observed in patients undergoing hemodialysis (HD) because of anterior chamber depth changes during this therapy. (dovepress.com)
Anterior chamber tube shunt to an encircling band (Schocket procedure) in the treatment of refractory glaucoma. (nih.gov)
The eye conditions to be studied include Axenfeld's syndrome, Rieger's anomaly, Peter's anomaly, (all with or without glaucoma), Iridocorneal Endothelial syndrome, Aniridia, Pigment Dispersion syndrome, Megalocornea and other conditions with clinical abnormalities of the anterior chamber. (clinicaltrials.gov)
Purpose: To quantify the effects of cataract surgery on the anterior chamber topography in patients with angleclosure glaucoma (PACG), open-angle glaucoma (POAG) and patients with no evidence of glaucoma or ocular hypertension. (omicsonline.org)
Horizontal scans of the nasal and temporal anterior chamber angles in glaucoma subjects were performed at 830 nm wavelength Fourier-domain OCT. Images were graded by 2 ophthalmologists who assessed the visibility of Schwalbe's line (SL), anterior limbus (AL), scleral spur (SS), and angle recess (AR). (ovid.com)
Methods: HH-OCT was used for imaging the anterior chamber of healthy children and children with congenital glaucoma, prematurity, nystagmus and anterior segment abnormalities. (le.ac.uk)
The abnormal development of the anterior chamber of children with congenital glaucoma and prematurity was compared to age-matched controls. (le.ac.uk)
Children with congenital glaucoma had significantly wider anterior chamber angle and greater anterior chamber width compared to age-matched controls. (le.ac.uk)
We report a case of persistent flat anterior chamber following glaucoma filtration surgery that was unresponsive to numerous choroidal taps and anterior chamber re-formations and in which perfluoropropane was successfully used. (jamanetwork.com)
The study was carried out on 71 consecutive eyes with primary open angle glaucoma or primary chronic angle closure glaucoma undergoing conventional trabeculectomy to compare the influence of pre-operative intracameral sodium hyaluronate 1% with hydroxypropyl methylcellulose 2% (HPMC2%) on postoperative anterior chamber depth (AC depth) and intraocular pressure (IOP) in trabeculectomy. (freethesaurus.com)
Yamamoto, "Effect of glaucoma implant surgery on intraocular pressure reduction, flare count, anterior chamber depth, and corneal endothelium in primary open-angle glaucoma," Japanese Journal of Ophthalmology, vol. (thefreedictionary.com)
Indeed, in glaucoma, it is possible detect the presence of proteins which testify to what occurs in the anterior chamber. (elsevier.com)
Saccà, SC & Izzotti, A 2014, ' Focus on molecular events in the anterior chamber leading to glaucoma ', Cellular and Molecular Life Sciences , vol. 71, no. 12, pp. 2197-2218. (elsevier.com)

Novel association of smaller anterior chamber width with angle closure in Singaporeans," Ophthalmology , vol. 117, no. 10, pp. 1967-1973, 2010. (hindawi.com)
Klein, RM 1986, ' Removal of fibrin clot from anterior chamber in endophthalmitis ', American journal of ophthalmology , vol. 101, no. 2, pp. 251. (elsevier.com)
Niederkorn, JY & Mellon, J 1996, ' Anterior chamber-associated immune deviation promotes corneal allograft survival ', Investigative Ophthalmology and Visual Science , vol. 37, no. 13, pp. 2700-2707. (elsevier.com)

Anterior chamber proteinaceous fluid can compress the iridocorneal filtration angle channels and/or the adjacent trabecular meshwork, impeding normal drainage of aqueous humor with resultant elevations in intraocular pressure. (nih.gov)
This study will concentrate on abnormalities of the anterior chamber with or without elevated intraocular pressure. (clinicaltrials.gov)
To evaluate the effects of irrigation dynamic pressure-assisted hydrodissection (irrigation-hydro: iH) on intraocular pressure (IOP) and the posterior chamber-anterior hyaloid membrane (PC-AHM) barrier in porcine eyes. (springer.com)
Influence of elevated intraocular pressure on the posterior chamber-anterior hyaloid membrane barrier during cataract operations. (springer.com)
As we know, the anterior chamber is filled with aqueous humor, and the aOP would be closely correlated to the intraocular pressure (IOP). (spiedigitallibrary.org)
For a quantitative analysis of the anterior chamber configurations, we used AS-OCT. We also evaluated the influence of cataract surgery in controlling intraocular pressure (IOP) and the number of required ocular hypotensive medications in patients with ACG and OAG both pre- and post-surgery. (ekjo.org)

The tight capsule-optic diaphragm effectively prevented the ophthalmic viscosurgical device captured behind the optic from entering the anterior chamber postoperatively. (nih.gov)
Single-use cannula for maintaining and forming the anterior chamber during ophthalmic surgery by injecting or removing viscoelastic materials, BSS or air. (eye4vision.com)

1-5 However, the procedure raises questions about the long-term potential risks to the corneal endothelium, lens, anterior uvea, and other ocular structures. (lww.com)
Immune privilege in the anterior chamber is a multifaceted phenomenon that may have evolved to protect delicate ocular tissues from immune-mediated damage. (jimmunol.org)
We report on a phase-based method for accurately measuring the ocular pulse in the anterior chamber in vivo . (spiedigitallibrary.org)
Introduction: Ocular involvement by cysticercosis is uncommon and rare in the anterior chamber with 10 reports in English literature. (ebscohost.com)
After the removal of the cilia, an uncomplicated phacoemulsification was performed and a posterior chamber intra-ocular lens was implanted. (biomedcentral.com)
After the removal of the cilium, an uncomplicated phacoemulsification and +21.00D posterior chamber intra-ocular lens (Ocuflex, Ocu-Ease Optical Products Inc., Pinole, Canada) implantation was performed. (biomedcentral.com)
This eye also underwent an uncomplicated phacoemulsification and posterior chamber intra-ocular lens implantation followed by stable post-operative course with BCVA of 1.0. (biomedcentral.com)
Tamponading agents can be kept out of the anterior chamber without suffering uncontrollable postoperative raised intra-ocular pressure. (evrs.eu)

Baxant A, Hornová J, Studený P, Vránová J, Rosina J (2016) Anterior Chamber Morphometry before and after Cataract Surgery. (omicsonline.org)
Several previews of clinical trials proved that cataract surgery improves visual acuity, changes the architectonic of the anterior chamber and reduces IOP both in glaucomatous and nonglaucomatous eyes [ 2 , 3 , 8 - 29 ]. (omicsonline.org)
Evaluating the anterior chamber morphometry may help to better understand the effect of cataract surgery on the lowering of IOP and on the dynamics of aqueous humor [ 33 ]. (omicsonline.org)
New visualization technologies, such as Pentacam rotating Scheimpflug camera (Oculus Inc., Wetzlar, Germany) help us to perform a reliable quantitative analysis of the anterior segments parameters and any changes following cataract surgery [ 34 ]. (omicsonline.org)
Free floating cyst in anterior chamber after cataract surgery. (ebscohost.com)
We describe a free-floating cyst in the anterior chamber after cataract surgery in a 73-year-old woman who underwent uneventful phacoemulsification in her right eye (OD). (ebscohost.com)
To evaluate the effect of primary posterior continuous curvilinear capsulorhexis (PCCC) with and without posterior optic buttonholing (POBH) on the anterior chamber reaction after small-incision cataract surgery. (nih.gov)
Cataract surgery with combined primary PCCC-POBH led to significantly lower postoperative anterior chamber reaction than conventional in-the-bag implantation during a 4-week follow-up. (nih.gov)
We present a free-floating anterior chamber cyst following cataract surgery in a 69 years old woman who underwent uneventful phacoemulsification surgery in her right eye. (escrs.org)

She desires surgery in her left eye, which has hand motions vision, a black lens, a fixed small pupil with 360 degrees of posterior synechiae, and an extremely shallow anterior chamber. (aao.org)
i have shallow anterior chamber and suspected to have sjgren's syndrome but no dry eyes. (healthtap.com)
ACG typically results from abnormal anatomy of the anterior segment of the eye, such as a narrow anterior chamber angle, a shallow anterior chamber depth, a thicker lens, a more anterior lens position, a small corneal diameter or a shorter axial length [ 1 - 4 ]. (ekjo.org)
Shallow Anterior Chamber in a Severe Cas. (acibadem.edu.tr)
Optical biometry showed the clinically significant shallow anterior chamber. (acibadem.edu.tr)

There are six classes of proteins which confirm the vascular endothelium nature of the anterior chamber and are the result of the morphofunctional trabecular meshwork decay. (elsevier.com)

The small diameter lens extends through the iris opening to be positioned substantially in the posterior chamber of the eye while the lateral legs extend in the anterior chamber of the. (google.com.au)
6. An intraocular lens implant device as claimed in claim 5, wherein said lens and support legs are adapted so that the extension of said lens in said posterior chamber exceeds the extension of said lens into said anterior chamber. (google.com.au)
This invention relates generally to an intracular lens implant device and more particularly to an intraocular lens implant which positions the lens substantially in the posterior chamber of the eye. (google.com.au)
In these prior art implants, a lens is positioned in the anterior chamber of the eye spanning the pupil, that is, resting on the iris to cover the pupil opening area. (google.com.au)
From other observations it is assumed, the structures are transparent and located on the front surface of the crystalline lens or at least within the anterior chamber of the eye. (wikiversity.org)
To prove the hypothesis or mouches volantes located in the anterior chamber and especially on the front surface of the lens a model of the human eye and the assumed structure of the mouches volantes was created. (wikiversity.org)
To evaluate the intraocular location and anatomic relationship to other structures of the ZSAL-4 angle-supported anterior chamber phakic intraocular lens (IOL) for high myopia using ultrasound biomicroscopy (UBM). (lww.com)
The mean temporal trabecular iris angle at 500 µm (TIA500) was 27.04°±12.04°, the mean nasal TIA500 was 27.43°±11.75°, the mean anterior chamber depth (ACD) was 2.75±0.39 mm and the mean lens vault (LV) was 0.44±0.30 mm. (dovepress.com)
Materials and methods: 170 eyes of 119 patients undergoing phacoemulsification, followed by posterior chamber intraocular lens implantations (PC IOL), were divided into three groups as follows: PACG (50 eyes, 28 patients), POAG (40 eyes, 29 patients) and a control group (80 eyes, 62 patients). (omicsonline.org)
A bifocal lens implanted in the anterior chamber of the eye having an air space in the upper lens edge to position the lens at the upper edge of the pupil in dilated and constricted state. (google.com)
A case of multiple rupture of the eye-ball : with partial dislocation of the lens into the anterior chamber / by B. A. Randall. (wellcomecollection.org)
Slit lamp photographs (A, B, and C) showing superior dislocation of a 3-piece posterior chamber intraocular lens within the capsular bag. (eyerounds.org)
Does Long-term Soft Contact Lens Wear Affect Corneal and Anterior Chamber Parameters? (thefreedictionary.com)
In this study, we compared changes in anterior chamber configurations in ACG- and OAG-eyes after phacoemulsification and posterior chamber intraocular lens (IOL) implantation. (ekjo.org)
We report a patient who underwent pars plana vitrectomy for a giant tear after receiving blunt trauma to his right eye and sustained postoperative perfluorocarbon liquid residue in the anterior chamber in spite of an intact crystalline lens. (biomedcentral.com)
Three weeks after the surgery, a residue of heavy liquid was observed in the anterior chamber, even though the patient had an intact crystalline lens without any tilt or dislocation. (biomedcentral.com)
Presence of heavy liquids in the anterior chamber may be associated with zonular defects even though the patient has an intact crystalline lens. (biomedcentral.com)
Colour images of perfluorodecalin residue in anterior chamber of a 17-year-old male with an intact crystalline lens. (biomedcentral.com)
The aim of this paper is to present a mathematical model to predict the drug concentration in the anterior chamber when a therapeutical contact lens with the drug is entrapped in nanoparticles is used. (uc.pt)
An artificial lens placed in the anterior chamber on top of the iris after natural lens has been removed. (thefreedictionary.com)
The lens may be fixated to the iris or positioned in the anterior chamber angle. (thefreedictionary.com)
Beneath the capsule on the anterior surface is a thin layer of cells, the lens epithelium. (thefreedictionary.com)
SLIT LAMP EXAM: The right eye has a posterior chamber intraocular lens is in good position with an open capsule. (retinagallery.com)
The left eye has a posterior chamber intraocular lens with a haptic in the angle superiorly, but the lens is centered. (retinagallery.com)
The device comprises a dielectric lens substrate having a concave inner surface conforming to the anterior surface of the eye, and at. (google.com)
The device comprises a dielectric lens substrate having a concave inner surface conforming to the anterior surface of the eye, and at least five recording electrodes positioned in relation to the inner surface of the lens substrate so as to make electrical connection with the anterior surface of the eye when the lens substrate is placed on the anterior surface of eye. (google.com)

The anterior chamber (AC) is the aqueous humor-filled space inside the eye between the iris and the cornea's innermost surface, the endothelium. (wikipedia.org)
The aqueous humor (AH) that fills the anterior chamber of the eye and bathes the corneal endothelial surface contains numerous immunomodulatory molecules, such as TGF-beta, which may protect the corneal endothelium from NK cell-mediated damage. (jimmunol.org)
[1] Aqueous humor is the fluid that fills the anterior chamber. (wikidoc.org)
Mathematical models to describe drug concentration profiles of topically administered drug in the anterior chamber aqueous humor have been proposed by several authors. (uc.pt)

Anterior uveitis is an inflammatory process affecting the iris and ciliary body, with resulting inflammatory signs in the anterior chamber. (wikipedia.org)
An anterior uveitis and/or a hypopyon may be present too. (bmj.com)

Gonioscopy was used to classify anterior chamber angles according to a modified Shaffer system. (ovid.com)
With gonioscopy, no anterior synechia or second cilia were noted. (biomedcentral.com)

This is called anterior chamber associated immune deviation (ACAID), a term introduced in 1981 by Streilein et al. (wikipedia.org)

In hyphema, blood fills the anterior chamber as a result of a hemorrhage, most commonly after a blunt eye injury. (wikipedia.org)

A computational method for analyzing electrophysiological potentials recorded at five or more locations on the anterior surface of the eye, which reflect the spatial distribution of activity of the retina, is also provided. (google.com)

This retrospective, case-control study examined the relationship between anterior chamber sterilization and vitreous positivity rate in cultures taken from 229 endophthalmitis cases. (aao.org)
The anterior chamber and vitreous displayed poor concordance. (aao.org)
As a result, anterior chamber findings were in no way helpful at indicating or predicting vitreous positivity or negativity rates. (aao.org)
Free-floating intraocular cysts can be divided into those occurring in the anterior chamber, those occurring in the retrolental space, and those occurring in the vitreous cavity. (ebscohost.com)
It states that cataract surgeons can benefit from learning pars plana since the removal of vitreous involves an anterior to posterior movement. (ebscohost.com)
High-risk features evaluated included the presence and extent of optic nerve (ON) invasion with respect to lamina cribrosa, the status of the ON cut margin, the presence of vitreous seedings, and invasion of the sclera, anterior chamber , and choroid. (freethesaurus.com)
To this end, we report on the shallowness of anterior chamber and transitory anterior vitreous cells in a patient with atypical severe serous retinal detachment. (acibadem.edu.tr)
Conclusions: Severe central serous chorioretinopathy can show up in an atypical fashion with macular, extramacular, juxtapapillary serous detachments, temporary existence of anterior vitreous cells, clinically detectable decreased anterior chamber depth, and mild eye pain of short duration. (acibadem.edu.tr)

Iris Anterior chamber IOL Structures of the eye labeled This image shows another labeled view of the structures of the eye Anterior segment Anterior chamber IOL (phakic IOL) Cassin, B. (wikipedia.org)
1) Slit lamp examination of the visible anterior segment structures and aqueous for aqueous flare and cells, posterior or anterior synechiae, iris hypoplasia, abnormal iris vessels or pigmentation, Krukenberg's spindle. (academy.org.uk)
Free-Floating Iris Pigmented Epithelial Cyst in the Anterior Chamber. (ebscohost.com)

Our single-use Anterior Chamber Cannula, also known as Air Injection, Rycroft, and Viscoelastic cannula, is available from 19 to 30 gauge. (microsurgical.com)

Ahmed mandrel for fixing the valve in the eye's anterior chamber is a hollow tube. (google.com)

The anterior chamber was quiet with no cells or flare and no posterior synechia. (biomedcentral.com)
Trace flare was present but no hemorrhage or fibrin were observed in the anterior chamber OS. (freethesaurus.com)

The results of the foregoing study demonstrate that the Scheimpflug slitlamp photographic analyses can provide an accurate measurement of the anterior chamber diameter without entering the globe surgically. (osti.gov)
Preliminary results show that this fully automated anterior chamber angle measurement method can achieve high accuracy and have good consistency with the manual measurement results, this has great significance for future clinical practice. (cdc.gov)

To evaluate anterior chamber depth and axial length in patients during HD sessions. (dovepress.com)
Axial length and anterior chamber depth were measured using ultrasonic biometry, and these measures were evaluated at three different times during HD sessions. (dovepress.com)

The Pentacam rotating Scheimpflug camera measured the following changes that occurred in the anterior chamber: depth (ACD), volume (ACV), angle (ACA) and central corneal thickness (CCT). (omicsonline.org)
Using the central corneal thickness (approximately 0.5 mm) as a reference, estimate the depth of the chamber. (academy.org.uk)
Comparison of three methods of measuring corneal thickness and anterior chamber depth. (semanticscholar.org)
PURPOSE To compare three different methods of measuring corneal thickness (CT) and anterior chamber depth (ACD). (semanticscholar.org)

9. A method to correct visual acuity in a mammalian eye, comprising: introducing the single piece corrective device of claim 1 into an anterior chamber of the mammalian eye, such that the visual acuity of the mammalian eye is corrected. (freepatentsonline.com)
Non-glaucomatous Caucasian subjects, who were newly referred to the outpatient department of the University Eye Clinic Maastricht UMC+, were asked to undergo anterior segment assessment with SS-OCT imaging prior to routine eye examination (including visual acuity and refractive error measurements, Goldmann applanation tonometry, slit lamp examination and funduscopy). (dovepress.com)
His visual acuity was 20/20 and anterior and posterior segments were normal in the left eye. (biomedcentral.com)
Slit lamp examination revealed a live, actively motile worm in the anterior chamber , which was extracted by supra temporal limbal incision and visual acuity was restored. (bvsalud.org)

The anterior chamber angle is the structure which determines the anterior chamber depth. (wikipedia.org)
The depth of the anterior chamber of the eye varies between 1.5 and 4.0 mm, averaging 3.0 mm. (wikipedia.org)
The EZ ratio method is one way to calculate the estimated anterior chamber depth. (wikipedia.org)
We observed a significantly decreased anterior chamber depth ( P = 0.002) during HD sessions. (dovepress.com)
Our results support the idea that there is a change in anterior chamber depth in HD sessions. (dovepress.com)
The average adult eye has a chamber depth of 3.15 mm The chamber shallows by 0.01 mm per year. (academy.org.uk)
An eye with an anterior chamber depth of less than 2.5 mm is at risk for angle closure. (academy.org.uk)
Validity and repeatability of anterior chamber depth measurements with Pentacam and Orbscan. (semanticscholar.org)
The effect of anterior chamber depth on endothelial cell count after filtration surgery. (harvard.edu)
This study also investigated changes in anterior chamber volume, depth, and angle with SCL wear. (thefreedictionary.com)

Twenty-eight fresh donor eyes (Georgia Lions Eye Bank) ranging in age from four months to 87 years were used for an in vitro study to determine the feasibility of obtaining accurate anterior chamber diameter measurements with our Scheimpflug ultraviolet-visible slitlamp densitography apparatus. (osti.gov)
Anterior chamber measurements using Pentacam rotating Scheimpflug camera. (semanticscholar.org)

The authors have devised an automated program to analyze the negatives and provide direct anterior chamber diameter measurements. (osti.gov)
Anterior chamber eye model (ACEM) phantoms can serve a variety of purposes, including demonstrating instrument functionality and performance in both the clinic and exhibit hall, validating corneal layer thickness measurements from different commercial instruments and as an aide for the R and D engineer and field service technician in the development and repair of instruments, respectively. (spie.org)
Anterior chamber measurements were significantly deeper with AS-OCT than with US immersion A-scan. (eurekamag.com)
0.9 for anterior chamber angle width measurements. (le.ac.uk)
This study showed that females have smaller anterior chamber measurements compared to males and an association of anterior chamber development to the myopic shift during emmetropisation. (le.ac.uk)
Conclusions: This thesis presents in-vivo measurements of the anterior chamber of healthy children and children with anterior chamber pathology using HH-OCT, for the first time, with excellent feasibility and repeatability. (le.ac.uk)

To determine whether a similar pattern of unusual reactivity would be induced by soluble antigens placed in this privileged site, we have examined the systemic immune responses of mice to anterior chamber injections of bovine serum albumin and bovine retinal S antigen - both soluble molecules. (unthsc.edu)

High-resolution 6 mm angle image shows the key anatomical landmarks including scleral spur to aid in evaluation of the anterior chamber angle configuration. (zeiss.com)

The administration of antigens into the anterior chamber (AC) of the eye induces a special form of antigen-specific peripheral immune tolerance termed AC-associated immune deviation (ACAID), which prevents delayed-type hypersensitivity (DTH) responses and other inflammatory responses. (jimmunol.org)
It is concluded that soluble antigens, as well as surface membrane-bound antigens, are capable of inducing anterior chamber-associated immune deviation (ACAID). (unthsc.edu)
To determine whether anterior chamber-associated immune deviation (ACAID) promotes corneal allograft survival. (elsevier.com)
ACAID was induced by priming in the anterior chamber (AC) with either Ia + spleen cells, Ia + spleen cells, corneal endothelial cells, or corneal epithelial cells from corneal allograft donors before orthotopic transplantation. (elsevier.com)

Conclusions: Younger persons and those with the least crowded anterior chambers at baseline have the largest 2-year decreases in AOD500 and ARA. (qub.ac.uk)

In Experiment 1, IOP was recorded while irrigating the anterior chamber (AC), during iH, and during phacoemulsification and aspiration in 20 porcine eyes using bottle heights of 50, 70, and 90 cm. (springer.com)

Objective: To study the population distribution and longitudinal changes in anterior chamber angle width and its determinants among Chinese adults. (qub.ac.uk)

Klein, Richard M. / Removal of fibrin clot from anterior chamber in endophthalmitis . (elsevier.com)

One peculiar feature of the anterior chamber is dampened immune response to allogenic grafts. (wikipedia.org)
The animals showed a positive delayed-type hypersensitivity (DTH) response at 10 days postinoculation, indicating that the anterior chamber-associated immune deviation was transient after HSV-1 inoculation. (elsevier.com)
Immune responses to cellular antigens placed in the anterior chamber of the eye are deviant: antibodies and cytotoxic T cells are generated, but delayed hypersensitivity is impaired. (unthsc.edu)

In the present cases, we performed cataract aspiration and posterior chamber IOL implantation in the bag, using an anterior chamber maintainer. (thefreedictionary.com)

Posterior embryotoxon: thickening and anterior displacement of Schwalbe's line by thickening and balling of Descemet's membrane. (utah.edu)

The IOL footplates appeared to be correctly positioned in the anterior chamber angle in all eyes. (lww.com)

The anterior chamber of the eye is lined with corneal endothelial cells, which are terminally differentiated cells that are incapable of regeneration. (jimmunol.org)

An unusual case of a free-floating peripheral pigmented cyst in the anterior chamber is presented. (ebscohost.com)
Chronic Pseudophakic Cystoid Macular Edema - Haptic Migrated into Anterior Chamber Through Peripheral Iridotomy 171 views 57-year-old man with congenital nystagmus. (retinagallery.com)

The vitrectomized pseudophakic eyes, in contrast to the nonvitrectomized pseudophakic eyes, were significantly associated with an increased risk of anterior chamber migration (odds ratio [OR] = 19.2, p = 0.009). (jkos.org)

If anterior chamber proteinaceous fluid is part of a more dispersed inflammatory process in the eye, it need not be diagnosed separately but should be described in the pathology narrative. (nih.gov)

Whereas knowledge of the structure of the anterior segment of the eye has been greatly enlarged in recent years by slit-lamp studies of the living eye, the present knowledge of the structures of the angle of the anterior chamber is still based almost solely on information acquired from the classic method of anatomic dissection and microscopic section of dead tissue. (jamanetwork.com)

Anatomy23

Organisms4

Diseases53

Chemicals and Drugs13

Analytical, Diagnostic and Therapeutic Techniques and Equipment40

Psychiatry and Psychology2

Phenomena and Processes5

Disciplines and Occupations1

Technology, Industry, Agriculture1

Health Care1

In oculo transplants of myometrium from postpartum guinea pigs fail to support sympathetic reinnervation. (1/841)

Latrunculin-A causes mydriasis and cycloplegia in the cynomolgus monkey. (2/841)

Effect of pilocarpine on visual acuity and on the dimensions of the cornea and anterior chamber. (3/841)

Lens extraction with ultrasound. Experiments in rabbits. (4/841)

Latrunculin-A increases outflow facility in the monkey. (5/841)

Effect of staurosporine on outflow facility in monkeys. (6/841)

Epithelial ingrowth of anterior chamber and anterior surface of vitreous. (7/841)

T cell immunity induced by allogeneic microglia in relation to neuronal retina transplantation. (8/841)

Anterior Chamber

Iris

Aqueous Humor

Anterior Eye Segment

Gonioscopy

Glaucoma, Angle-Closure

Intraocular Pressure

Trabecular Meshwork

Cornea

Cataract Extraction

Eye

Iris Diseases

Ciliary Body

Sclera

Biometry

Lens Implantation, Intraocular

Uveitis, Anterior

Hyphema

Microscopy, Acoustic

Lenses, Intraocular

Glaucoma

Phacoemulsification

Corneal Edema

Fluorophotometry

Endophthalmitis

Endothelium, Corneal

Eye Diseases

Eye Neoplasms

Vitreous Body

Blood-Aqueous Barrier

Iridectomy

Lens Subluxation

Lens, Crystalline

Refraction, Ocular

Uvea

Iritis

Injections

Descemet Membrane

Paracentesis

Axial Length, Eye

Corneal Transplantation

Eye Infections, Parasitic

Refractive Errors

Tonometry, Ocular

Eye Enucleation

Ophthalmic Solutions

Tomography, Optical Coherence

Viscoelastic Substances

Visual Acuity

Uveitis

Lens Diseases

Uveal Diseases

Myopia

Trabeculectomy

Corneal Diseases

Diffusion Chambers, Culture

Pupil

Eye Infections, Bacterial

Carcinoma, Brown-Pearce

Ocular Hypotension

Laser Therapy

Hyperopia

Diagnostic Techniques, Ophthalmological

Lens Capsule, Crystalline

Pseudophakia

Hypersensitivity, Delayed

Corneal Opacity

Mydriatics

Cataract

Retinitis

Eye Abnormalities

Glaucoma, Neovascular

Interferometry

Rabbits

Ocular Hypertension

Ocular Physiological Phenomena

Corneal Topography

Eye Injuries

Eye Infections, Viral

Sclerostomy