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the eye

disorders and normal

bleph eyelid
ocloculo eye
ophthalm eye
opis/opia vision
opto vision
phak lens
sclera tough or hard/outer layer
ambly dimness
od right/ (D) dexter
os left/ (S) sinister
ou both (U) union
tonometer instrument used to measure
intraocular pressure I.O.P.
accommodation focusing
enucleation removal of part of the eye
evisceration removal of the eye (viser=organ)
anisocoria inequality of pupils
exophthalmus bulging of the eyes
diploma double vision
presbyopia loss of visual acuity due to aging
amblyopia dimness of vision
aphakia no lens
nyctalopia night blindness
myopia near sided
hyperopia far sided
hordeolum infected eyelash root
conjunctivitis pink eye inflamed or red can't open eye for drainage
purulent drainage pus
dacr/o tears/tear ducts lacrim
strabismus when optic axis fails to fall on the same object
astigmatism abnormal curvature of the cornea makes objects warped or distorted
papilledema swelling around the optic nerve causing temporary blindness
macular degeneration lose central vision
diabetic retinopathy disease of the choroid (blood vessels)
glaucoma increase in I.O.P. above 20 loses pherial vision
cataracts opacity (clouding) of the normally clear lens.
what parts of the eye do you see through pupil, choroid, retina, sclera
sclera white of the eye -outer layer
cornea center outer layer of the eye. 1st layer that light travels through
iris a circular muscle that gives pigmentation
choroid blood vessels nerve sensation
retina layer where vision takes place- nerve impulse
optic nerve carries impulses to the brain
cilliary muscle can change shape of lens
which structure gives most acute vision fovea
what sits inside the fovea macula
name the opening in the center of the iris pupil
state the pupil size in dim lights; bright lights big/dilated ;little/constricted
thin membrane which covers and protects eyeball conjunctiva
function of lacrim gland forms tears
location of the anterior cavity cornea to back of lens
location of the anterior chamber cornea to iris
location of posterior cavity lens to back of nerve
location of the posterior chamber iris to back of lens
function of the lens focusing/accommodation
location and function of the canal of schlemm anterior cavity drains aqueous humor
pathway light travel through eye cornea, pupil, lens, retina, optic nerve, occipital lobe
the three layers of the eye sclera, choroid, retina
the area of the brain in which vision occurs occipital lobe
refraction bending of light
ingredient of rods and cones rhodopsin
when light hits rhodopsin it splits into two chemicals retinal & opsin which creates electrical stimulas
specialized nerve cells that only respond to light are rods and cones
vitreous humor jelly-like and is in posterior cavity
aqueous humor provides nutrients for all structures in the anterior cavity and picks up waste and gets rid of it too
Created by: t4achange



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