The ciliary muscle affects the eye's ability to focus.

Question

Quizplus · Accepted Answer

The ciliary muscle is a ring of smooth muscle in the eye that affects the shape of the lens, allowing it to change shape and focus on objects at different distances. When the ciliary muscle contracts, the lens becomes more rounded and can focus on nearby objects, while when it relaxes the lens becomes flatter and can focus on distant objects. Therefore, the ciliary muscle plays a critical role in the eye's ability to focus.

The Ciliary Muscle Affects the Eye's Ability to Focus