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Chapter 12 Eye

The Chapter All About The Eye

TermDefinition
sclera outer protective layer of the eye
cornea transparent anterior part of the sclera
choroid middle layer of the eye, which is interlaced with many blood vessels
iris the pigmented muscular structure that regulates the amount of light entering the eye
pupil opening in the center of the iris
lens lies directly behind the pupil
retina innermost layer of the eye
aqueous humor watery liquid found in the anterior cavity of the eye
vitreous humor jelly like substance found behind the lens in the posterior cavity of the eye that maintains its shape
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
blephar/o eyelid
conjuctiv/o conjusctiva
cor/o, core/o, pupill/o pupil
corne/o, kerat/o cornea
dacry/o, lacrim/o tear, tear duct
ir/o, irid/o iris
ocul/o, ophthalm/o eye
opt/o vision
phac/o, phak/o lens
retin/o retina
scler/o sclera
cry/o cold
dipl/o two, double
is/o equal
phot/o light
ton/o tension, pressure
bi-, bin- two
-opia vision (condition)
-phobia abnormal fear
-plegia paralysis
aphakia condition of without a lens
blepharitis inflammation of the eyelid
blepharoptosis drooping of the eyelid
conjuctivitis inflammation of the conjuctiva
dacryocysitis inflammation of the tear sac
diplopia double vision
Created by: emilyjean