Safety
blindness
RETINA, BLINDNESS
After this 12-month RLRL intervention, no functional damage as indicated by BCVA was observed. No children reported having glare, flash blindness, or afterimages longer than 6 minutes after treatment. An afterimage induced by prior adaptation to a visual stimulus is believed to be due to bleaching of photochemical pigments or neural adaptation in the retina. Participants with an afterimage duration exceeding 6 minutes were clinically considered too sensitive to visual stimulus.