| A | B |
|---|
| eye | located in a bony protective cavity of the skull called the orbit |
| sclera | outer protective layer of the eye; white of the eye |
| cornea | transparent anterior part of the sclera, is in front of the aqueous fluid and lies over the iris |
| choroid | middle layer of the eye; interlaced with many blood vessels |
| iris | muscular structure that gives the eye its color allowing light to pass through |
| pupil | opening in the center of the iris |
| lens | lies directly behind the pupil. Its function is to focus and bend light |
| retina | innermost layer of the eye; contains the vision receptors |
| aqueous fluid | watery liquid found in the anterior cavity of the eye |
| vitreous fluid | jellylike liquid found behind the lens in the posterior cavity of the eye |
| meibomian glands | oil glands found in the upper and lower edges of the eyelids that help lubricate the eye |
| lacrimal glands and ducts | produce and drain tears |
| optic nerve | carries visual impulses from the retina to the brain |
| conjunctiva | mucous membrane lining the eyelids and covering the anterior portion of the sclera |
| astigmatism (Ast) | defective curvature of the refractive surface of the eye |
| cataract | clouding of the lens of the eye |
| chalazion | obstruction of the oil gland of the eyelid; also called meibomian cyst |
| detached retina | separation of the retina from the choroid in back of the eye |
| emmetropia (Em) | normal condition of the eye |
| glaucoma | abnormally increased intraocular tension |
| hyperopia | farsightedness - refraction disorder |
| mascular degeneration | a progressive deterioration of the portion of the retina called the macula lutea, resulting in loss of central vision |
| myopia | nearsightedness - refraction disorder |
| nyctalopia | poor vision at night or in faint light |
| nystagmus | involuntary, rhythmic movements of the eyes |
| presbyopia | impaired vision as a result of aging |
| pterygium | abnormal fold of membrane extending from conjunctiva to cornea |
| retinitis pigmentosa | hereditray, progressive disease marked by night blindness with atrophy and retinal pigment changes |
| strabismus | abnormal condition of squint or crossed eyes caused by the visual axes not meeting at the same point |
| sty (hordeolum) | infection of the oil gland of the eyelid |
| cryoextraction of the lens | procedure in which a cataract if lifed from the eye with an extremely cold probe |
| enucleation | surgical removal of the eye, (also, the removal of any organ that comes out clean and whole) |
| phacoemulsification | method to remove cataracts in which an ultrasonic needle proble breaks up the lens, which is then aspirated |
| photorefractive keratectomy (PRK) | a procedure for the treatment of nearsightedness in which an excimer laser is used to reshape (flatten) the corneal surface |
| radial keratotomy (RK) | surgery in which spoke-like incisions are made to flatten the cornea, thus correcting nearsightedness |
| retinal photocoagulation | procedure to repair tears in the retina by use of an intense, precisely focused light beam; used to repair retinal detachment |
| scleral buckling | repair of a detached retina. |
| / | / |
| vitrectomy | surgical removal of all or part of the vitreous fluid |
| miotic | agent that constricts the pupil |
| mydriatic | agent that dilates the pupil |
| oculus dexter (OD) | medical term for right eye |
| oculus sinister (OS) | medical term for left eye |
| oculus uterque (OU) | medical term for each eye |
| optometrist | a health professional who prescribes corrective lenses and/or eye exercises |
| visual acuity (VA) | sharpness of vision for either distance or nearness |
| strabotomy | incision into the tendon of an extrinsic muscle of the eye to relieve strabismus (abnormal condition of squint or crossed eye) |
| trabeculectomy | surgical creation of a drain to reduce intraocular pressure |
