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Updated: Aug 8, 2026
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Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
Published on: July 21, 2020
Effect of induced fixation disparity on binocular visual acuity
T C Jenkins1, L D Pickwell, F Abd-Manan
1Department of Optometry, Bradford University, West Yorkshire, UK.
Abstract:
Fixation disparities were artificially created for distance vision by prisms, and the monocular and binocular visual acuities were measured. The normal approximate 10% improvement in binocular visual acuity compared to monocular visual acuity, deteriorated in proportion to the amount of fixation disparity created by the prisms. This was true in both eso- and exo-disparity, although not to the same extent.
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