Question

____ controls the size of the pupils.

Answer 1

Middle coat of the eye:

1. The iris is the anterior-most part of the vascular coat of the eyeball.
2. The iris is made of two sets of smooth muscles that are arranged circularly and radially around the pupil.
3. The iris contracts and expands the pupil based on the amount of light present in the surrounding.

Iris controls the size of the pupils.