What structure is primarily responsible for focusing light at the back of the eye?
A)Pupil
B)Fovea
C)Lens
D)Retina

Question

Quizplus · Accepted Answer

The lens, located behind the iris, is responsible for refracting incoming light and focusing it onto the retina at the back of the eye. The size of the pupil (A) regulates the amount of light entering the eye, while the fovea (B) is responsible for sharp central vision and contains a high density of photoreceptor cells. The retina (D) contains the sensory cells that detect light, but does not play a direct role in focusing the light onto it.

What Structure Is Primarily Responsible for Focusing Light at the Back