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ORIGINAL RESEARCH article

Front. Pediatr.
Sec. Children and Health
Volume 12 - 2024 | doi: 10.3389/fped.2024.1502660

Prevalence of myopia and refractive parameters among children and adolescents in Hi-tech District of Chengdu City

Provisionally accepted
Xiaoqin Wang Xiaoqin Wang 1Liuzhi Zeng Liuzhi Zeng 1Yiping Xian Yiping Xian 1Xin Mei Xin Mei 1Qingqing Shan Qingqing Shan 1Wei-Ye Li Wei-Ye Li 1Lixia Lv Lixia Lv 1Yifeng Liu Yifeng Liu 1Rui Zhang Rui Zhang 1Kejian Song Kejian Song 1Xixi Tian Xixi Tian 1Honglin Luo Honglin Luo 2Ling Yang Ling Yang 3Jun Luo Jun Luo 1Zejun Chen Zejun Chen 1*
  • 1 Chengdu Integrated TCM and Western Medical Hospital, Chengdu, China
  • 2 Zhonghe Community Health Service Center of Chengdu High-Tech Zone,, Chengdu, China
  • 3 Chengdu High-tech Zone health Bureau,Chengdu, Chengdu, China

The final, formatted version of the article will be published soon.

    Objective: To analyze the prevalence of myopia among children and adolescents in Chengdu from 2021 to 2023, providing insights for myopia prevention and control. Methods: This study was a school-based cross-sectional study in children and adolescents aged 3–18 years in Hi-tech District of Chengdu City. All the students underwent comprehensive ocular measurement, including uncorrected binocular visual acuity (VA), spherical equivalent error (SER) with noncycloplegic autorefraction, corneal radius (CR), and axial length (AL) . Results: Over the three-year study period from 2021 to 2023, the overall prevalence of myopia was 38.15%, with annual rates of 38.74% in 2021, 38.67% in 2022, and 37.03% in 2023. The prevalence and severity of myopia increased significantly with age (P < 0.001). The prevalence was consistently higher among girls (p<0.001) with 40.17% in 2021, 39.43% in 2022, and 38.33% in 2023 compared to 37.03%, 38.05% and 35.85% among boys in the years, respectively. The myopia prevalence increased with school level (P < 0.001). Mild myopia was the most common (24.47%), followed by moderate (10.77%) and severe myopia (2.91%). The mean SER were -1.72 ± 1.57 D in 2021, -1.32 ± 1.51 D in 2022, and -1.42 ± 1.36 D in 2023 (P < 0.001). AL was stable across most age groups, with mean AL across the overall sample of 23.80 ± 1.02 mm in 2021, 23.79 ± 1.04 mm in 2022, and 23.81 ± 1.04 mm in 2023. Conclusion: Myopic prevalence among children and adolescents in Hi-tech District of Chengdu City decreased from 2021 to 2023. The prevalence increased with age and school level, indicating a need for targeted interventions. Significant changes in spherical equivalent refraction and AL emphasize the importance of early intervention and regular monitoring of myopia for an effective management.

    Keywords: Myopia, Prevalence, spherical equivalent error, Axial length, Epidemiological

    Received: 27 Sep 2024; Accepted: 25 Nov 2024.

    Copyright: © 2024 Wang, Zeng, Xian, Mei, Shan, Li, Lv, Liu, Zhang, Song, Tian, Luo, Yang, Luo and Chen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Zejun Chen, Chengdu Integrated TCM and Western Medical Hospital, Chengdu, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.