Analysis of refractive development characteristics in school-age children based on biometric measurements: a cross-sectional study involving 12,025 primary school students from Xingtai City

Vision impairment and myopia prevalence show higher prevalence in older age groups in Xingtai primary students. Suboptimal refractive correction rates highlight clinical challenges. AL progression and stable corneal curvature suggest axial elongation drives myopia. The AL/corneal radius ratio's correlation with SE underscores its potential as a predictor for myopia progression, aiding risk prediction model development.