Association between fundus tessellated density and subfoveal choroidal thickness in children with different refractive statuses

FTD and SFCT are significantly associated in a nonlinear manner in myopic children, with a defined threshold effect that varies by refractive status. AI-based FTD measurement offers a reproducible and accessible method for quantifying early structural changes in myopia. The identified nonlinear relationship and threshold suggest that combined assessment of FTD and SFCT may hold promise for improving early detection and monitoring of pediatric myopic progression, warranting further longitudinal validation.