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Efficacy of Repeated Low-level Red-light Therapy in Myopia Control

University of California, San Francisco · with University of Melbourne · NCT05606237

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Opens the official ClinicalTrials.gov record, with the study team’s contacts. Bored Studies doesn’t enroll anyone.

Key facts

Compensation
Not posted. Ask the study team before screening.
Who can join
Ages 8–13 · All sexes
Healthy volunteers
Accepted
Study type
Interventional · Not applicable
Target enrollment
90
US sites recruiting
1
Study start
July 14, 2023
Record last updated
January 28, 2026

Status re-checked against ClinicalTrials.gov within the last 12 hours.

What the study 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.

Being studied: Low-level Red Light Therapy Device

Conditions: Myopia

Eligibility criteria

Copied from the official record. The study team makes the final decision at screening.

Show full criteria

Inclusion Criteria

  • Provision of consent
  • Non-Chinese Ethnicity
  • Age: ≥8 and ≤13 years at enrollment
  • Myopia: Spherical equivalent refractions (SERs) under cycloplegia: -1.00 to -5.00 diopters (D)
  • Astigmatism of 2.50 D or less 5) Anisometropia of 1.50 D or less 6) Corrected monocular logMAR visual acuity (VA): 1.0 or better 7) Consent to participate in random allocation of grouping 8) Fluent in English 9) Willing and able to participate in all required activities of the study6) Corrected monocular logMAR visual acuity (VA): 1.0 or better

Exclusion Criteria

  • Strabismus and binocular vision abnormalities in either eye
  • Ocular abnormalities in either eye or other systemic abnormalities that affect participate in all required activities of the study.
  • Other reasons, including but not limited to severe physical and cognitive disability, that the physician may consider inappropriate for enrollment
  • Noncompliance with treatment
  • Children whose parents do not sign informed consent

Recruiting US locations

  • University of California, San Francisco

    San Francisco, CA 94143

    Site contact: Jenny Lu · 415-476-5321 · jenny.lu@ucsf.edu

Study contacts (from the official record)

  • Tiffany Chen, MD · 4155143503 · Tiffany.A.Chen@ucsf.edu
All healthy volunteers studies in California →
Efficacy of Repeated Low-level Red-light Therapy in Myopia Control (NCT05606237) | Bored Studies