Definitions for "HETEROPHORIA"
Latent deviation of the eyes held straight by binocular vision.
Tendency for one or both eyes to wander away from the position where both eyes are looking together in the same direction. Esophoria means a tendency for the eye to deviate inwards (towards the nose), and exophoria means a tendency for the eye to deviate outwards (towards the ear).
tendency of the eyes to deviate