18/17

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lasik

a laser removes corneal tissue to correct myopia

fibrous layer of clear tissue that extends iver the anterior portion of the eyeball

cornea

fibrous transparent layer of clear tissue over the eyeball

cornea

keratoplasty

corneal transplant surgery

inflamation of a tear gland

dacryoadenitis

transparent structure behind the iris an din front of the vitreous humor it refracts light rays onto the retina

lens

retina

light sensitive inner nerve cell layer rods and cones

a yellowish region on the retina lateral to the optic disc

macula

tonometry

measurement of tension or pressure within the eye glaucoma test ______

area of the brain where optic nerve fibers cross

optic chiasm

what is the region at the back of the eye where the optic nerve meets the retina

optic disc

cranial nerves

optic nerve fibers

ultrasonic vibrations break up the lens and it is aspirated from the eye

phacoemulsification

fundus

posterior inner part of the eye

central opening of the iris

pupil

open center of the iris through which light rays enter

pupil

vitrectomy

removal of diseased fluid in the chamber behind the lens of the eye

contains sensitive cells called rods and cones that transform light energy into nerve impulses

retina

scleral buckle

suture of a silicone band to the sclera to correct retinal detachment

visual acuity test

test of clearness of vision

visual feild examination

test to measure central and peripheral vision when the eyes are looking straight ahead

relay center of the brain

thalamus

refraction

the bending of light rays by the cornea, lens, and fluid of the eye

rods

the photoreceptor cells in the retina that make vision in dim light possible

cones

the photoreceptor cells in the retina that makes the perception of color possible

optic chiasm

the point at which the fibers of the optic nerve cross in the brain

fovea centralis

the tiny pit on the retina lateral to the optic disc

lens

transparent biconvex body that refracts light rays

slit lamp ocular examination

use of and instrument form miscroscopic examination of parts of the eye

ophthalmoscopy

visual examination of the interior of the eye after dilation of the pupil

cerebral cortex

visual region of the brain

space and soft jelly like material in the posterior of eye

vitreous chamber and vitreous humor

jelly like material behind the lense that helps maintain the shape of the eyeball

vitreous humor

eye abnormally turns outward

exotropia

absence of vision in half of visual field

hemianopsia

laser photocoagulation

high energy light radiation beams are used to stop retinal hemorrhaging

inflamation of the eye

blepharitis

vascular layer of the eyeball that is contunour with the iris

choriod

contains muscles that control the shape of the lense and secretes aquenous humor

ciliary body

delicate membrane lining the eyelids and covering the anterior eye ball

conjuctiva

conjuctivitis

inflamation of the conjuctiva

keratitis

inflamation of the cornea

iritis

inflamation of the iris

eye abnormally turns inward

intraocular

fluorescien aniography

intravenous injectioon of dye followed by photographs of the eye through dilated pupils

colored portion of the eye surrounds the pupil

iris

anterior chamber

is the area behind the cornea and in front of the lens and iris

accomidation

is the normal adjustment of the lens to bring an object into focus for near vision


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