<P> Ocular dominance, sometimes called eye preference or eyedness, is the tendency to prefer visual input from one eye to the other . It is somewhat analogous to the laterality of right - or left - handedness; however, the side of the dominant eye and the dominant hand do not always match . This is because both hemispheres control both eyes, but each one takes charge of a different half of the field of vision, and therefore a different half of both retinas (See Optic Tract for more details). There is thus no direct analogy between "handedness" and "eyedness" as lateral phenomena . </P> <P> Approximately two - thirds of the population is right - eye dominant and one - third left - eye dominant . however in a small portion of the population neither eye is dominant . Dominance does appear to change depending upon direction of gaze due to image size changes on the retinas . There also appears to be a higher prevalence of left - eye dominance in those with Williams--Beuren syndrome, and possibly in migraine sufferers as well . Eye dominance has been categorized as "weak" or "strong"; highly profound cases are sometimes caused by amblyopia or strabismus . </P>

What does it mean if you are right handed but left eye dominant
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