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physics week 12

name: ______________________________
Across
clouding and hardening of the lens
responsible for color vision
the transparent gelatinous tissue filling the eyeball behind the lens.
the transparent outer covering of the eye.
regulates the amount of light reaching the retina
a layer at the back of the eyeball containing cells that are sensitive to light.
lacking visual receptors and so creating a blind spot.
Break down of the retina
focuses the light rays that pass through it in order to create clear images of objects
the part of the eye that connects the iris to the choroid
increased fluid pressure, which can damage the optic nerve
Down
the aqueous space inside the eye between the iris and the cornea's innermost surface.
nearsightedness
the pigmented vascular layer of the eyeball between the retina and the sclera.
the curvature of the eye isn't truly spherical
shapes the cornea and provides nourishment to the eye.
transmitting impulses to the brain from the retina at the back of the eye.
farsightedness
A small depression in the retina of the eye where visual acuity is highest.
age-related farsightedness
a flat, colored, ring-shaped membrane behind the cornea of the eye
the white outer layer of the eyeball. At the front of the eye it is continuous with the cornea.