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Chapter 5
the eye
| Term | Definition |
|---|---|
| lacrim/o | tear |
| ophthalm/o | eye |
| vitre/o | glassy |
| asthenopia | eyestrain (asthenia = weak condition) |
| diplopia | abnormal protrusion of one or both eyeballs; also spelled exophthalmos |
| antibiotic ophthalmic solution | antimicrobial agent in solution; used to treat bacterial infections (conjunctivitis and corneal ulcers |
| miotic | agent that causes the pupil to contract (mio = less) |
| eye instillation | introduction of a medicated solution in the eye, usually administered by a drop (gt) or drops (gtt) in the affected eye or eyes |
| cryoretinopexy | use of intense cold to seal a hole or tear in the retina; used to treat retinal detachment |
| dacryocystectomy | excision of a lacrimal sac |
| iridectomy | excision of a portion of iris tissue |
| laser surgery | use of a laser to make incisions or destroy tissues; used to create fluid passages or obliterate tumors, aneurysms, etc. |
| astigmatism | distorted vision caused by an oblong or cylindrical curvature of the lens or cornea that prevents light rays from coming to a single focus on the retina (stigma = point) |
| myopia | nearsightedness; difficulty seeing distant objects when light rays are focused on a point in front of the retina |
| aphakia | absence of the lens, usually after cataract extraction |
| blepharoptosis | drooping of the eyelid; usually caused by paralysis |
| chalazion | chronic nodular inflammation of a meibomian gland, usually the result of a blocked duct; commonly presents as a swelling on the upper or lower eyelid (chalaza = hailstone) |
| conjunctivitis | pinkeye; inflammation of the conjunctiva |
| diabetic retinopathy | disease of the retina in diabetics characterized by capillary leakage, bleeding, and new vessel formation (neovascularization) leading to scaring and loss of vision |
| entropion | inward turning of the rim of the eyelid |
| ectropion | outward turning of the rim of the eyelid (tropo = turning) |
| glaucoma | group of diseases of the eye characterized by increased intraocular pressure that results in damage to the optic nerve, producing defects in vision |
| hordeolum | sty; an acute infection of a sebaceous gland of the eyelid (hordeum = barley) |
| iritis | inflammation of the iris |
| keratitis | inflammation of the cornea |
| macular degeneration | breakdown or thinning of the tissues in the macula, resulting in partial or complete loss of central vision |
| pseudophakia | an eye in which the natural lens is replaced with an artificial lens implant (pseudo = false) |
| retinal detachment | separation of the retina from the underlying epithelium, disrupting vision and resulting in blindness if not repaired surgically |
| strabismus | a condition of eye misalignment cased by intraocular muscle imbalance (strabisus = squinting; hetero = other) |
| esotropia | right or left eye deviates inward, toward nose (eso = inward; tropo = turning) |
Created by:
mmendez11
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