phoria

phoria

 [for´e-ah] any tendency to deviation of the eyes from the normal when fusional stimuli are absent or fusion is otherwise prevented; a latent or usually unmanifested tropia" >tropia; see also heterophoria.

phor·i·a

(fōr'ē-ă), 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]

phor·i·a

(fōr'ē-ă) 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]

phoria 

Synonym for heterophoria as well as orthophoria.