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.

Front Public Health · 2025 · PMC12497698 · PMID 41059178

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Furthermore, AL/CR exhibited a significant trend of progression across grades, increasing from 2.95 ± 0.10 in Grade 1 to 3.08 ± 0.14 in Grade 6, with an overall mean of 3.02 ± 0.17.

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