Binocular Vision System and Vergence Adaptation

Abstract

Vergence adaptation, clinically known as prism adaptation, has been considered a homeostatic function of eye movement that compensates for extraocular muscle force change due to aging, development, disease, or fatigue. However, recent experiments using healthy subjects showed that vergence adaptation can induce a different response in relation to version, vergence, or any combination of the two. Thanks to this flexible and sophisticated mechanism of neurological adaptation, the binocular system achieves fine stereoscopic vision at any given gaze position and viewing distance.