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The use of one eye by choice for particular tasks such as aiming a gun. This may or may not be related to right-hand or left-hand dominance.
See also: dominance
The superiority of one eye whose visual function predominates over the other eye. It is that eye (called the dominant eye) which is relied upon more than the other in binocular vision. It is not necessarily the eye with the best acuity. The lack of ocular dominance is referred to as ambiocularity and such a person is ambiocular. See manoptoscope; occlusion treatment; hole in the card test.