Which eye structure constricts or dilates to control the amount of light that enters the eye?
A)iris
B)pupil
C)retina
D)lens

Question

Quizplus · Accepted Answer

The iris controls the size of the pupil, which determines how much light enters the eye. When the iris constricts, the pupil becomes smaller, allowing less light to enter the eye. When it dilates, the pupil becomes larger, allowing more light to enter the eye.

Which Eye Structure Constricts or Dilates to Control the Amount