hypoesophoria

A tendency of the visual axis of one eye to deviate downward and inward, prevented by binocular vision. [hypo- + G. eso, within, + phoros, bearing]

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hy·po·eso·pho·ria (hi″po-es″o-forґe-ə) a tendency of the visual axis to deviate downward and medially when fusion is prevented.