The relative directions assumed by the eyes during binocular fixation of a given object in the absence of an adequate fusion stimulus. See cyclophoria, esophoria, exophoria, heterophoria, hyperphoria, hypophoria, orthophoria. [G. phora, a carrying, motion]
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pho·ria 'fō-rē-ə n any of various tendencies of the lines of vision to deviate from the normal when binocular fusion of the retinal images is prevented
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pho·ria (forґe-ə) heterophoria.Medical dictionary. 2011.