Download - Func anatomy of eye
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External
AnatomyExternal
Anatomy
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The iris controls the
amount of light
entering the eye
cavities
The contraction of
radial or circular
smooth muscles
located within the iris
permit changes in
the pupil diameter
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Three cell layers:
-- outer layer: photoreceptors- rods and cones
-- middle layer: bipolar neurons
-- inner layer: ganglion cells
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Light