Flat, colored, ring shaped membrane behind cornea
The clear tissue that covers the front of the eye
Dark circular opening at center of iris, varying in size to regulate how much light reaches retnia
the light-sensitive membrane covering the back wall of the eyeball
vascular layer beneath the sclera that provides nourishment to the outer portion of the retina
the bundle of cells that carry neural message from eye to brain
'white outermost layer of the eye provides strength, shape, and structure
the flexible piece of tissue that helps focus light toward the back of the eye, behind iris
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