title: Binocular visual performance with aberration correction as a function of light level.
abstract: The extent to which monocular visual performance of subjects with normal amounts of ocular aberrations can be improved with adaptive optics (AO) depends on both the pupil diameter and the luminance for visual testing. Here, the benefit of correction of higher order aberrations for binocular visual performance was assessed over a range of luminances for natural light-adapted pupil sizes with a binocular AO visual simulator. Results show that binocular aberration correction benefits for visual acuity and contrast sensitivity increase with decreasing luminances. Also, the advantage of binocular over monocular viewing increases when visual acuity becomes worse. The findings suggest that binocular summation mitigates poor visual performance under low luminance conditions.
authors.affiliation: Laboratorio de Óptica, Universidad de Murcia, Instituto Universitario de Investigación en Óptica y Nanofísica, Campus de Espinardo, Murcia, Spain.
authors.forename: Christina
authors.initials: C
authors.lastname: Schwarz
authors.affiliation: Laboratorio de Óptica, Universidad de Murcia, Instituto Universitario de Investigación en Óptica y Nanofísica, Campus de Espinardo, Murcia, Spain.
authors.forename: Silvestre
authors.initials: S
authors.lastname: Manzanera
authors.affiliation: Laboratorio de Óptica, Universidad de Murcia, Instituto Universitario de Investigación en Óptica y Nanofísica, Campus de Espinardo, Murcia, Spain.
authors.forename: Pablo
authors.initials: P
authors.lastname: Artal
mesh_terms: D000328:Adult; D015350:Contrast Sensitivity / Q000502:physiology*; D006801:Humans; D008027:Light; D008875:Middle Aged; D011680:Pupil / Q000502:physiology; D012030:Refractive Errors / Q000503:physiopathology*; D014787:Vision Tests; D015348:Vision, Binocular / Q000502:physiology*; D014792:Visual Acuity / Q000502:physiology*
keywords: binocular vision; low luminance; optical aberrations