The turning inward of the eyes, which occurs when they focus on a nearby object, is called:
A) binocular depth.
B) retinal disparity.
C) convergence.
D) monocular depth.

Question

Quizplus · Accepted Answer

The turning inward of the eyes when focusing on a nearby object is called convergence. This allows the eyes to maintain binocular depth perception by changing the angle of each eye's line of sight, which is necessary for perceiving depth and distance accurately. Retinal disparity refers to the slight difference between the images projected onto each retina, which is also important for depth perception, but it is not specifically related to the turning inward of the eyes. Monocular depth cues, on the other hand, rely on information perceived by only one eye, such as texture gradient, relative size, and linear perspective.

The Turning Inward of the Eyes, Which Occurs When They