binocular vision

vision which utilizes both eyes at once

Binocular vision is vision in which both eyes are used together. The word binocular comes from two Latin roots, bin for two, and oculus for eye. Having two eyes confers at least four advantages over having one. First, it gives a creature a spare eye in case one is damaged. Second, it gives a wider field of view. For example, a human has a horizontal field of view with one eye of about 150 degrees and with two eyes of about 180 degrees. Third, it gives binocular summation in which the ability to detect faint objects is enhanced. Fourth it can give stereopsis in which parallax provided by the two eyes' different positions on the head give precise depth perception. Such binocular vision is usually accompanied by singleness of vision or binocular fusion, in which a single image is seen despite each eye's having its own image of any object.
See more at Wikipedia.org...

blending of the separate images seen by the two eyes. Normal binocular vision produces a stereoscopic image and parallax-induced depth perception.

Noun
1. vision involving the use of both eyes
(hypernym) sight, vision, visual sense, visual modality
(hyponym) stereoscopic vision, stereoscopy