The amount of light that impinges on the retina is primarily regulated by what structure?
A) ciliary body
B) cornea
C) iris
D) fovea
E) optic disk

Name: The amount of light that impinges on the retina is primarily regulated by what structure? A) ciliary body B) cornea C) iris D) fovea E) optic disk
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Question

Quizplus · Accepted Answer

The iris is the structure in the eye that regulates the amount of light entering the eye by adjusting the size of the pupil.

The Amount of Light That Impinges on the Retina Is