Age-related normal limits for spatial vision.

ABSTRACT:

Purpose

To establish age-related, normal limits of monocular and binocular spatial vision under photopic and mesopic conditions.

Methods

Photopic and mesopic visual acuity (VA) and contrast thresholds (CTs) were measured with both positive and negative contrast optotypes under binocular and monocular viewing conditions using the Acuity-Plus (AP) test. The experiments were carried out on participants (age range from 10 to 86 years), who met pre-established, normal sight criteria. Mean and ± 2.5σ limits were calculated within each 5-year subgroup. A biologically meaningful model was then fitted to predict mean values and upper and lower threshold limits for VA and CT as a function of age. The best-fit model parameters describe normal aging of spatial vision for each of the 16

SUBMITTER: Keuken A 

PROVIDER: S-EPMC9805202 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature