One of the mysteries of the English language finally explained.
The perception of depth produced by the reception in the brain of visual stimuli from both eyes in combination; binocular vision.
- ‘He hypothesized that basal primates were visually directed predators of fauna on slender branches, a milieu that favored a wide field of stereopsis and clawless, prehensile hands for visually tracking and grasping prey.’
- ‘This skill, called stereopsis or stereoscopic vision, is a wonderful example of inverse optics.’
- ‘The athletes were tested for visual acuity, refractive error, oculomotor skills, stereopsis, color vision, contrast sensitivity, eye-hand coordination, eye-foot coordination, and overall ocular health.’
Early 20th century: from stereo- ‘three-dimensional’ + Greek opsis ‘sight’.
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