Individual Objective and Subjective Fixation Disparity in Near Vision.

ABSTRACT: Binocular vision refers to the integration of images in the two eyes for improved visual performance and depth perception. One aspect of binocular vision is the fixation disparity, which is a suboptimal condition in individuals with respect to binocular eye movement control and subsequent neural processing. The objective fixation disparity refers to the vergence angle between the visual axes, which is measured with eye trackers. Subjective fixation disparity is tested with two monocular nonius lines which indicate the physical nonius separation required for perceived alignment. Subjective and objective fixation disparity represent the different physiological mechanisms of motor and sensory fusion, but the precise relation between these two is still unclear. This study measures both types o

SUBMITTER: Jaschinski W 

PROVIDER: S-EPMC5279731 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature