Retinal Disparity (Binocular Cue)

A Binocular Cue is a type of the depth cue that relays on the use of both eyes to judge the distance between two nearby objects. An example of an binocular cue is retinal disparity, which combines the images of an object from the view of both retinas to determine the actual distance between the objects. For example, the image below shows the distance between two peaches as perceived with the use of both retinas. If only one eye was used to view the peaches, the distance between them would appear greater, as if shifted apart, or closer, as if pushed together, depending on which eye was used.