Interocular differences in higher-order aberrations on binocular visual performance.
OBJECTIVE
To analyze the influence of higher-order aberrations on binocular visual performance under mesopic conditions.


METHODS
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).


RESULTS
Binocular summation and maximum disparity significantly decrease with increasing interocular differences in higher-order aberrations (total, coma, and spherical aberration).


CONCLUSIONS
At least some aspects of binocular visual performance are less effective for large interocular differences in higher-order eye aberrations.
Jiménez
José R
JR
Departamento de Optica, Edificio Mecenas, Universidad de Granada, Granada, Spain. jrjimene@ugr.es
Castro
José J
JJ
Jiménez
Raimundo
R
Hita
Enrique
E
D000328:Adult; D015350:Contrast Sensitivity / Q000502:physiology; D003867:Depth Perception / Q000502:physiology; D006801:Humans; D012030:Refractive Errors / Q000503:physiopathology*; D014786:Vision Disorders / Q000503:physiopathology*; D015348:Vision, Binocular / Q000502:physiology*