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The Effects of Different Outdoor Light Exposure Modes on Retinal Blood Flow

NCT05594732 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 81

Last updated 2023-06-08

No results posted yet for this study

Summary

In 2020, the overall myopia rate among children and adolescents in my country was 52.7%. The COVID-19 pandemic has increased students' time of indoor eye-using, and it showed that the light exposure intensity of myopic students is lower than that of non-myopia students. Studies have found that the light wave bandwidth has a significant impact on the emmetropization of the eye, and white light can promote emmetropia more than monochromatic light. It shows that outdoor exercise has a protective effect on the occurrence and development of myopia in children and adolescents, but the specific mechanism is still unclear. Retinal blood flow is sensitive to myopic stimuli, and is a short-term indicator of the relationship between light environment and myopia. This study selected retinal blood flow as the primary outcome, aiming to compare the effects of different outdoor light exposure modes on retinal blood flow after 1 hour of intense eye use, and provide clues for the prevention and control of myopia.

Conditions

  • Myopia

Interventions

BEHAVIORAL

Weak outdoor light

Stay and stare far on the balcony or under the tree

BEHAVIORAL

Strong outdoor light

Stay and stare far in the sunlight

Sponsors & Collaborators

  • Shanghai Eye Disease Prevention and Treatment Center

    lead OTHER

Principal Investigators

  • Xiangui He · Shanghai Eye Hospital

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
7 Years
Max Age
15 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-09-06
Primary Completion
2022-10-30
Completion
2022-10-30

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05594732 on ClinicalTrials.gov