Short-term effects of sunlight exposure on fundus blood flow perfusion in children: a randomised controlled trial.

ABSTRACT:

Aim

To evaluate the short-term effects of different sunlight exposure on fundus blood flow perfusion (BFP) after near work.

Methods

In this parallel randomised controlled trial, 81 students aged 7-15 with spherical equivalent refraction between -2.00 and +3.00 diopters were randomly assigned to either a low-illuminance (4k lux) group (N=40) or high-illuminance (10k lux) (N=41). Following 1 hour indoor reading, participants had sunlight exposure matching their group's intensity for 15 minutes. BFPs in the superficial retina, deep retina and choroid were measured at four time points: pre-reading, post-reading, 5th-minute and 15th-minute sunlight exposure.

Results

Within the initial 5 minutes of sunlight exposure, the 10k lux group showed a tendency for decreased BFP, pa

SUBMITTER: Zhao L 

PROVIDER: S-EPMC11672060 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature