MedTrace Logo

Myopia Control Using Bright Light Therapy, Myopic Defocus and Atropine

NCT04923841 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 577

Last updated 2026-05-12

No results posted yet for this study

Summary

The purpose of the study is to investigate the effect of bright light therapy, myopic defocus, atropine and the combination in myopia control in schoolchildren.

Conditions

  • Myopia

Interventions

OTHER

High intensity light box for bright light therapy and single vision spectacle lenses

High intensity light box for bright light therapy and single vision spectacle lenses

OTHER

High intensity light box for bright light therapy and Defocus Incorporated Multiple Segments (DIMS) spectacle lenses

High intensity light box for bright light therapy and Defocus Incorporated Multiple Segments (DIMS) spectacle lenses

OTHER

High intensity light box for bright light therapy and atropine 0.01% eye drop and and single vision spectacle lenses

High intensity light box for bright light therapy and atropine 0.01% eye drop and and single vision spectacle lenses

OTHER

Atropine 0.01% eye drop and and single vision spectacle lenses

Atropine 0.01% eye drop and and single vision spectacle lenses

Sponsors & Collaborators

  • The University of Hong Kong

    collaborator OTHER

  • The Hong Kong Polytechnic University

    lead OTHER

Principal Investigators

  • Chi Ho To, PhD · School of Optometry, The Hong Kong Polytechnic University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
7 Years
Max Age
12 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-09-09
Primary Completion
2026-03-17
Completion
2026-03-17

Countries

  • Hong Kong

Study Locations

More Related Trials

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 NCT04923841 on ClinicalTrials.gov