sensitivity, and brightness sensitivity improve. Maximum binocular summation occurs when the sensitivities of each eye are equal. Differences in sensitivity decrease the effect of binocular summation. The effect of binocular summation decreases with age.

Binocular inhibition

In binocular inhibition, vision with both eyes is worse than with one eye. This can occur with strabismus or a lazy eye, because the weaker eye interferes with the stronger one. Eye dominance,

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