Abstract Purpose To investigate the prevalence of reduced visual acuity among adolescents in Jiaocheng County. Shanxi Province. Methods Fourteen thousand fifty-one Jiaocheng County students aged 7 to 21 were chosen to engage in this research project in 2019. For uncorrected distance visual acuity (UCDVA) testing. https://www.foldlyers.shop/product-category/keyboard/