The Rebound Effect on Repeated Low-Level Red Light Therapy for Myopia (NCT07748546) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
The Rebound Effect on Repeated Low-Level Red Light Therapy for Myopia
159 participantsStarted 2026-08-15
Plain-language summary
Myopia is a global public health issue, projected to affect 49.8% of the world population by 2050, increasing risks of cataracts, glaucoma, macular degeneration, and retinal detachment. Repeated low-level red light (RLRL) therapy has shown promising myopia control in 12-month trials, reducing axial elongation by 69.4% and refractive progression by 76.6% versus spectacles, outperforming 0.01% atropine and benefiting orthokeratology poor responders. However, two-year data indicate declining efficacy in the second year and a rebound effect upon discontinuation, with progression rates matching untreated controls. This study enrolls participants who completed one year of continuous RLRL therapy to evaluate rebound effects on axial length and spherical equivalent refractive power among those who discontinue, gradually reduce, or continue treatment. Findings will inform strategies to optimize long-term RLRL protocols and mitigate post-treatment rebound.
Who can participate
Age range
8 Years – 16 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. 8 to 16 years old
. Rceived continuous RLRL treatment for 1 year (±1 month) without interruption.
. Diagnosed with myopia (ciliary muscle paralysis SER ≥ -0.50 D), astigmatism ≤ 2.50 D, anisometropia ≤ 1.50 D, and bilateral best corrected visual acuity (BCVA) ≥ Snellen 20/20 before receiving RLRL treatment.
. The consent of the guardian and the consent of the participant.
Exclusion criteria
. History of any ophthalmic surgery or ocular diseases (e.g., glaucoma, retinal disorders).
. Systemic diseases that affect vision or eye health (e.g., diabetes). After discontinuing RLRL treatment, other myopia control interventions other than monocular glasses should be employed (including atropine, orthokeratology lenses, defocused/DOT lenses, etc.).
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Axial length(AL)
Timeframe: Baseline, 6 months and12 months.
Trial details
NCT IDNCT07748546
SponsorThe First Affiliated Hospital of Anhui Medical University