Effect of Repeated Low-Level Red-Light Therapy for Myopia Control in Children: A Multicenter Randomized Controlled Trial
Adjusted axial elongation · 12 months
Reported adjusted between-group difference
95% CI 0.20–0.31 mm
Adjusted refractive progression · 12 months
264 children aged 8–13 were randomized; 246 were analysed. RLRL plus single-vision spectacles was compared with spectacles alone for 12 months. The published model estimate is reported as 0.26 mm; subtracting the rounded arm means gives 0.25 mm.
The trial supports one-year axial and refractive efficacy. Single blinding, no sham arm, a Chinese cohort and specific device exposure limit inference. No severe adverse events, BCVA functional loss or OCT structural damage were observed during this trial; that does not establish long-term retinal safety or safety of unrelated red-light emitters.