Gary's physician warned him that changes in his vision made it too dangerous for him to drive his car anymore after dark, although he would be perfectly safe during the daytime. Gary is probably experiencing deficits in his
A) color vision.
B) retinal disparity.
C) photopic vision.
D) scotopic vision.

Question

Quizplus · Accepted Answer

Scotopic vision refers to the ability to see in low-light conditions, such as at night. If Gary's physician is advising him not to drive after dark, it suggests that his scotopic vision is impaired. Color vision (A) and retinal disparity (B) are not necessarily related to driving at night, and photopic vision (C) refers to vision in bright light conditions.

Gary's Physician Warned Him That Changes in His Vision Made