To focus on objects closer than 20 feet,
A) the lens must become flatter.
B) the cornea must move inward.
C) the ciliary muscles must contract.
D) the suspensory ligaments increase tension on the lens.
E) the retina must bend.

Question

Quizplus · Accepted Answer

To focus on objects closer than 20 feet, the ciliary muscles must contract. This action allows the lens to become more rounded, increasing its ability to bend light more sharply and focus it onto the retina.

To Focus on Objects Closer Than 20 Feet