What structure is primarily responsible for focusing light onto the back of the eye?
A)cornea
B)fovea
C)lens
D)retina

Question

Quizplus · Accepted Answer

The lens is the primary structure responsible for focusing light onto the back of the eye. The cornea also plays a role in focusing light, but the lens is the more important of the two. The fovea is a small spot on the retina that is responsible for sharp, detailed vision, but it is not involved in the initial focusing of light. The retina is the layer of cells at the back of the eye that contains the photoreceptor cells that detect light and send visual information to the brain, but it is not responsible for focusing light.

What Structure Is Primarily Responsible for Focusing Light onto the Back