Lens - Lens: biconvex, transparent structure consisting of...

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Lens: biconvex, transparent structure consisting of lens epithelium (cuboidal o cataract: clouding of lens due to inadequate nutrient supply to lens fibers - physiology of vision: light is reflected by objects in the environment before reaching eyes light entering the eyes is refracted (bent) 3 times before reaching the is focused light reaching the retina path of light to photoreceptors : cornea, aqueous humor, lens, vitreous humor, neural layer to photoreceptors focusing for distant vision requires no accommodation of visual apparatus focusing for close vision requires: o accommodation (bulging) of lens o constriction of pupils o convergence of eyeballs photoreception: o o rods use rhodopsin (deep purple pigment) o cones use 3 different types of opsins to yield:
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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Lens - Lens: biconvex, transparent structure consisting of...

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