Which binocular cue involves the inward angle of the eyes focusing on a near object?
A) convergence
B) retinal disparity
C) interposition
D) relative motion

Question

Quizplus · Accepted Answer

Convergence is the binocular cue that involves the inward angle of the eyes focusing on a near object. This cue works by the brain sensing the amount of tension in the eye muscles required to focus on a near object, with greater tension indicating that the object is closer. Retinal disparity refers to the difference between the images produced on the retina of each eye and is also a binocular cue, but it is not related to the inward angle of the eyes. Interposition and relative motion are monocular cues that do not involve both eyes working together.

Which Binocular Cue Involves the Inward Angle of the Eyes