18/17
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