Binocular function in the aging visual system: fusion, suppression, and stereoacuity.

ABSTRACT:

Introduction

Changes in vision that occur in normal healthy aging can be seen in fundamental measures of monocular vision. However, the nature of the changes in binocular vision with age remain unclear.

Methods

A total of 28 older (53-66 years) and 28 younger adults (20-31 years) were enrolled in this study. We performed a battery of tests to assess differences in monocular contrast thresholds and various binocular visual functions including dichoptic masking weight and strength, the binocular balance point for fused stimuli, and stereoacuity in the aging and control groups.

Results

Aging significantly increased monocular contrast thresholds (p < 0.001). Although this suggests that aging reduces the effective "input gain" to vision, we also found a significantl

SUBMITTER: Song Y 

PROVIDER: S-EPMC10932981 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature