The structure of the eye that focuses light rays on the retina is the
A) pupil.
B) cornea.
C) optic disk.
D) lens.

Question

Quizplus · Accepted Answer

The lens is the structure of the eye that focuses light rays on the retina. The cornea is also involved in focusing light, but primarily serves as a protective layer for the eye. The pupil is simply the opening through which light enters the eye. The optic disk is where the optic nerve exits the eye and is not involved in focusing light.

The Structure of the Eye That Focuses Light Rays on the Retina