Refractive and visual function changes in twilight conditions.

ABSTRACT:

Purpose

We investigated the effect of luminance on refraction and visual function under twilight conditions.

Methods

Twenty young adults (mean age 20.5 ± 0.5 years) without ocular diseases and 20 eyes were included in the study. Subjective and objective spherical equivalent power (SE), logMAR, pupil diameter, ocular aberration, and ocular axial length were evaluated. Measurements were conducted in a light room with high luminance (300 cd/m2) targets (photopic), in a dark room with low luminance (10 cd/m2) targets (twilight), and a dark room after 15 min of adaptation to low luminance (10 cd/m2) targets (after adaptation: AA). Differences between the three conditions were analyzed using the Friedman test and Scheffe's multiple comparisons.

Results

The results of logMAR

SUBMITTER: Iizuka T 

PROVIDER: S-EPMC9012392 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature