A tendency of one eye to deviate upward and outward, prevented by binocular vision. ... Origin: hyper-+ G. Exo, outward, + phora, movement ... (05 Mar 2000) ... 
(hi″pәr-ek″so-for´e-ә) deviation of the visual axes upward and outward.
Type: Term Pronunciation: hī′pĕr-ek′sō-fō′rē-ă Definitions: 1. A tendency of one eye to deviate upward and outward, prevented by binocular vision.