The Muscle Responsible for Changing the Shape of the Lens

Question

The muscle responsible for changing the shape of the lens to improve near vision is the
A)arrector pili muscle
B)iris
C)ciliary muscle
D)superior rectus muscle
E)superior oblique muscle

Accepted Answer

The ciliary muscle is responsible for changing the shape of the lens to improve near vision. When the ciliary muscle contracts, it pulls on the suspensory ligaments of the lens, allowing it to become more round and increase its focusing power for near objects.