Observation of the effectiveness of low-intensity single-wavelength red light irradiation therapy in the prevention and control of myopia in adolescents

Abstract Objective This research primarily analyses the prevention and control effect of low-intensity single-wavelength red light irradiation treatment for myopia in adolescents.Methods Ninety myopic children were randomly assigned to two groups (n = 45 per group). The control group received standard myopia correction with glasses, while the observation group underwent additional low-intensity single-wavelength red light therapy. Axial length (AL), spherical equivalent (SE), and best-corrected visual acuity (BCVA) were assessed before intervention and 3 and 6 months post-intervention. Refractive power, tear film lipid layer thickness (LLT), and tear film breakup time (BUT) were also evaluated at the same time points. The therapeutic effects and adverse reactions in the observation group were observed.Results Six months post-intervention, AL elongation in the observation group was shorter relative to the control group (P < 0.05). SE showed greater improvement in the observation group at both 3 and 6 months (P < 0.05), and BCVA was significantly better post-intervention (P < 0.05). Although refractive power, LLT, and BUT improved in both groups after treatment, intergroup differences were not statistically significant (P > 0.05). Overall, treatment efficacy was superior in the observation group (P < 0.05).Conclusion Low-intensity single-wavelength red light therapy effectively controls myopia progression in adolescents with a favorable safety profile.