The pupillary reflex is a(n)
A)change in the opening of the iris in response to a change in light intensity.
B)when the eye is automatically directed toward motion in the visual scene.
C)adjustment in the thickness of the lens in response to a change in light intensity.

Question

Quizplus · Accepted Answer

The pupillary reflex is a response to changes in light intensity, causing the opening of the iris to either dilate or constrict in order to regulate the amount of light entering the eye. Choice B refers to the visual tracking reflex, and choice C refers to the accommodation reflex.

The Pupillary Reflex Is A(n)