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Cornea
transparent window into eyeball
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aqueous humor
fluid behind cornea which supplies o2 and nutrients to cornea and removes waste
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crystalline lens
lens inside eye that adjusts focus
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pupil
Black hole inside iris where light enters
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Iris
colored part of the eye, muscle that expands and contracts pupil depending on light
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Vitreous Humor
Transparent fluid filling the area behind the lens before the retina
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Rods
Specialized photoreceptors for night vision
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Cones
specialized photo receptors for daylight vision, fine visual accuity, and color
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Myopia
nearsightedness, the eyeball is too long
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hyperopia
farsightedness, eyeball is too short
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presbyopia
old sight, loss of near vision bc of loss of ability to accommodate.
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