Abstract
To analyze the influence of higher-order aberrations on binocular visual performance under mesopic conditions. We measured aberrations in both eyes of 35 emmetropic observers with a Wasca aberrometer. Binocular visual performance was checked with both binocular summation for contrast sensitivity function and a parameter that characterizes stereopsis (maximum disparity). Binocular summation and maximum disparity significantly decrease with increasing interocular differences in higher-order aberrations (total, coma, and spherical aberration). At least some aspects of binocular visual performance are less effective for large interocular differences in higher-order eye aberrations.
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