The lens of the eye
A)has convex surfaces
B)is stronger when it is flatter
C)contributes most extensively to the eye's total refractive ability
D)is made of vitreous humor
E)has all of the characteristics above

Question

Quizplus · Accepted Answer

The lens of the eye has convex surfaces, which help in focusing light onto the retina. The lens is not stronger when flatter; it becomes stronger (more refractive) when it is more curved. The cornea, not the lens, contributes most extensively to the eye's total refractive ability. The lens is not made of vitreous humor; it is a transparent, flexible structure made of proteins and water.

The Lens of the Eye