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Retina
contains photoreceptors (cones for sharp color vision, and rods for night, dark vision)
Optic Disc (blind spot)
attaches the retina to the optic nerve
Choroid
reduces scattering of light and provides nourishment for the eye
Tapetum lucidum
increases the ability to see at night
Sclera
gives the eyeball its shape
Lens
focuses light on the retina through accommodation
Choroid
reduces scattering of light and provides nourishment for the eye
Ciliary body
contracts its muscles to allow the lens to bulge for closer objects; relaxes its muscles to allow the lens to flatten for distant objects