What normally controls the amount of light entering the eye?
A) ciliary muscle
B) suspensory ligaments
C) iris
D) cornea

Question

Quizplus · Accepted Answer

The iris controls the amount of light entering the eye by adjusting the size of the pupil. When there is a lot of light, the iris will contract the pupil to reduce the amount of light entering the eye, and vice versa when there is low light. The ciliary muscle and suspensory ligaments are responsible for adjusting the shape of the lens to focus on objects at different distances, while the cornea is a clear protective covering on the front of the eye.

What Normally Controls the Amount of Light Entering the Eye