Actively Recruiting
Efficacy of Repeated Low-level Red-light Therapy in Myopia Control
Led by University of California, San Francisco · Updated on 2026-01-28
90
Participants Needed
1
Research Sites
182 weeks
Total Duration
On this page
Sponsors
U
University of California, San Francisco
Lead Sponsor
U
University of Melbourne
Collaborating Sponsor
AI-Summary
What this Trial Is About
Low-level red-light technology provides a new and innovative myopia control approach. This strategy enables relatively high energies of light to be delivered at much shorter durations of exposure to induce the myopia control effect. The efficacy of the low-level red-light technology has been proven in a Chinese population. This trial demonstrated that 3-minutes per session twice a day repeated low-level red-light treatment controlled 87.7% of refraction progression and 76.8% of axial length elongation when the time of compliance to the treatment was 75%. Repeating this RCT in culturally diverse groups will confirm and translate this technology into a solution for myopia control globally.
CONDITIONS
Official Title
Efficacy of Repeated Low-level Red-light Therapy in Myopia Control
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Provision of consent
- Non-Chinese ethnicity
- Age between 8 and 13 years at enrollment
- Myopia with spherical equivalent refractions (SERs) under cycloplegia from -1.00 to -5.00 diopters
- Astigmatism of 2.50 diopters or less
- Anisometropia of 1.50 diopters or less
- Corrected monocular visual acuity (logMAR) of 1.0 or better
- Consent to participate in random group allocation
- Fluent in English
- Willing and able to participate in all required study activities
You will not qualify if you...
- Strabismus or binocular vision abnormalities in either eye
- Ocular abnormalities or systemic conditions affecting participation
- Severe physical or cognitive disabilities deemed inappropriate by physician
- Noncompliance with treatment
- Parents do not provide informed consent
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
University of California, San Francisco
San Francisco, California, United States, 94143
Actively Recruiting
Research Team
T
Tiffany Chen, MD
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NA
Model
SINGLE_GROUP
Primary Purpose
TREATMENT
Number of Arms
1
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