Term
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Definition
| reduced vision in one eye caused by disuse or misuse associated with strabismus, unequal refractive errors or otherwise impaired vision; the brain suppresses images from the impaired eye to avoid double vision (aka lazy eye) |
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Definition
| blurred vision caused by irregular curvature of the cornea or lens; light refracts improperly, resulting in diffused, rather than points of light focusing on the retina |
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Definition
| clouding of the lens of the eye |
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Term
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Definition
| obstruction of an oil gland of the eyelid (aka meibomian cyst) |
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Term
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Definition
| separation of the retina from the choroid in back of the eye |
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Term
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Definition
| eye disorder characterized by increase of intraocular pressure; if left untreated may progress to optic nerve damage and visual impairment or loss |
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Definition
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Definition
| progressive deterioration of the portion of the retina called the macula lutea, resulting in loss of central vision |
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Term
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Definition
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Definition
| poor vision at night or in faint light (aka night blindness) |
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Term
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Definition
| involuntary, jerking movements of the eyes |
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Term
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Definition
| yellowish mass on the conjuctiva that may be related to exposure to ultraviolet light, dry climates and dust |
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Term
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Definition
| a pinguecula that has spread onto the cornea |
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Term
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Definition
| impaired vision as a result of aging |
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Definition
| hereditary, progressive disease marked by night blindness with atrophy and retinal pigment changes |
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Definition
| condition in which the eyes look in different directions; caused by dysfunction of the external eye muscles (called cross-eyed when one eye turns in) |
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Term
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Definition
| infection of an oil gland of the eyelid (aka stye or hordeolum) |
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Term
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Definition
| surgical removal of the eyeball (also, the removal of any organ that comes out clean and whole) |
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Term
| laser-assisted in sity keratomileusis (LASIK) |
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Definition
| laser procedure that reshapes the corneal tissue beneath the surface of the cornea to correct astigmatism, hyperopia and myopia (different from PRK in that it reshaped corneal tissue beneath, rather than on the surface) |
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Term
| phacoemulsification (PHACO) |
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Definition
| method to remove cataracts in which an ultrasonic needle probe breaks up the lens, which is then aspirated |
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Term
| photorefractive keratectomy (PRK) |
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Definition
| procedure for the treatment of nearsightedness in which a laser is used to reshape (flatten) the corneal surface by removing a portion of the cornea |
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Term
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Definition
| intense beam of light from a laser condenses retinal tissue to seal leaking blood vessels to destroy abnormal tissue or lesions, or to bond the retina to the back of the eye |
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Term
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Definition
| procedure to repair a detached retina |
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Term
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Definition
| surgical creation of an opening that allows aqueous humor to drain out of the eye to underneath the conjuctiva where it is absorbed; used to treat glaucoma by reducing pressure |
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Term
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Definition
| surgical removal of all or part of the vitreous humor (used to treat diabetic retinopathy) |
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Term
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Definition
| normal refractive condition of the eye |
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Term
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Definition
| artificial lens implanted within the eye during cataract surgery |
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Term
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Definition
| agent that constricts the pupil |
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Term
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Definition
| agent that dilates the pupil |
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Term
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Definition
| specialist who fills prescriptions for lenses (cannot prescribe lenses) |
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Term
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Definition
| health professional who prescribes corrective lenses and/or eye exercises |
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Term
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Definition
| sharpness of vision for either distance or near |
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