Light that is incident upon the eye is refracted several times before it reaches the retina.As light passes through the eye,at which boundary does the majority of the overall refraction occur?
A)lens/aqueous humor
B)air/cornea
C)lens/vitreous humor
D)aqueous humor/iris
E)vitreous humor/retina

Question

Quizplus · Accepted Answer

The majority of the overall refraction occurs at the air/cornea boundary, where the light first enters the eye and is bent as it passes from air to the denser cornea. While there is also some refraction at the lens/aqueous humor and vitreous humor/retina boundaries, the cornea is the most powerful refracting surface and is responsible for about two-thirds of the overall refraction.

Light That Is Incident Upon the Eye Is Refracted Several