Cross-sectional study of myopia prevalence and associated risk factors among children and adolescents in Shaanxi Province, China, in 2021.

ABSTRACT:

Purpose

Myopia is a growing global health issue, particularly among Chinese children and adolescents. This study aimed to investigate the prevalence and risk factors of myopia among children and adolescents in Shaanxi Province, China.

Methods

A cross-sectional study conducted in 2021 included 261,504 participants from Guanzhong, Southern Shaanxi, and Northern Shaanxi. Ophthalmological examinations were performed, and refractive error was assessed using non-cycloplegic refraction to determine the spherical equivalent (SE). Myopia was defined as SE ≤-0.5 D and categorized into low (SE >-3.0 D), moderate (SE >-6.0 D), and high myopia (SE ≤-6.0 D). Data on age, gender, education level, and ethnicity were collected using structured questionnaires administered through face-to-face

SUBMITTER: Guo YM 

PROVIDER: S-EPMC12931328 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature