Just as the iris controls the size of the pupil, ____ control the shape of the lens.
A) the sclera
B) the cornea
C) vision strands
D) ciliary muscles

Question

Quizplus · Accepted Answer

The ciliary muscles control the shape of the lens in order to adjust the focus of the eye. The sclera is the white outer layer of the eye, the cornea is the clear outer layer that covers the iris and pupil, and there is no such thing called "vision strands."

Just as the Iris Controls the Size of the Pupil