A two-year randomized study of 108 premyopic children has shown that repeated red light therapy (RRLT) —administered twice daily for 3 minutes— significantly slowed myopia progression compared with controls. Children receiving RRLT demonstrated less axial elongation (0.26 mm vs 0.43 mm) and smaller refractive shifts (−0.21 D vs −0.66 D) over 24 months, along with better preservation of subfoveal choroidal thickness . However, after discontinuation in the second year, the washout subgroup exhibited accelerated axial elongation and choroidal thinning, indicating a rebound effect once therapy ceased.
These findings suggest RRLT is a non-invasive, effective preventive strategy against early myopia progression—but highlight the need for long-term maintenance or tapering protocols to sustain benefits post-treatment. To read more ; Click here Could continuous or phased RRLT programs become the…
