Predominant eye - the eye of the leading hand or the leading eye, also known as the dominant eye, unlike the dominant eye, the dominant eyes play the same role for both hands and eyes, and also provide binocular vision (both monocular and binocular vision with the help of the dominant, dominant eyes). Predominant and dominant eyes are also called "redundant" eyes. Often both of these properties are combined in one eye. The dominant eyes determine the advantages of the other eye apparatus. If the right eye and hand are dominant (and the right hemisphere of the brain is symmetrical), a person uses his right hand better, orients himself in space from right to left and vice versa, and will not be able to work coordinatedly with both hands.