The Eye
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| blepharitis | inflammation of the eyelid
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| rods | rod-shaped cells within the retina that respond to dim light
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| strabismus | a condition of eye misalignment caused by intraocular muscle imbalance (strabisus = squinting; hetero = other)
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| sonography | use of high-frequency sound waves to detect pathology within the eye (e.g, foreign bodies and detached retina)
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| ciliary muscle | smooth muscle portion of the ciliary body, which contracts to assist in near vision
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| blepharochalisis | baggy eyelid; overabundance and loss of skin elasticity on the upper eyelid causing a fold of skin to hang down over the edge of the eyelid when the eyes are open (chalasis = slackening)
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| trabecular meshwork | mesh-like structure in the anterior chamber that filters the aqueous humor as it flows into the canal of Schlemn
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| dacry/o | tear
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| blephar/o | eyelid
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| corne/o | cornea
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| vitre/o | glassy
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| -opia | vision condition
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| presby/o | old age
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| phot/o | light
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| scler/o | hard or sclera
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| ophthalm/o | eye
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| phak/o | lens (lentil)
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| irid/o | iris, colored part of eye
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| pupil | black, circular opening in the center of the iris through which light passes as it enters the eye
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| cones | cone-shaped cells within the retina that are color sensitive and respond to bright light
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| lens capsule | capsule that encloses the lens
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| macula lutea | central region of the retina; responsible for central vision; yellow pigment provides its color
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| optic disc | exit site of retinal nerve fibers as well as entrance point for retinal arteries and exit point for retinal veins
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| optic nerve | nerve responsible for carrying impulses for the sense of sight from the retina to the brain
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| gt | drop
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| gtt | drops
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| IOL | intraocular lens
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| LASIK | laser-assisted in situ keratomileusis
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| tonometry | use of a tonometer to measure intraocular pressure, which is elevated in glaucoma
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| iritis | inflammation of the iris
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| epiphore | abnormal overflow of tears caused by blockage of the lacrimal duct (epi = upon; phero = to bear)
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| conjunctivitis | pinkeye; inflammation of the lacrimial gland
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| aphakia | absence of the lens, usually after cataract extraction
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