Volume 42 Issue 10
Oct.  2021
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CHEN Hongyan, LIAO Ya, DONG Lei, WANG Wei, WANG Xiaojuan. Myopia of primary school students in Suqian before and after COVID-19 epidemic[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2021, 42(10): 1571-1574. doi: 10.16835/j.cnki.1000-9817.2021.10.031
Citation: CHEN Hongyan, LIAO Ya, DONG Lei, WANG Wei, WANG Xiaojuan. Myopia of primary school students in Suqian before and after COVID-19 epidemic[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2021, 42(10): 1571-1574. doi: 10.16835/j.cnki.1000-9817.2021.10.031

Myopia of primary school students in Suqian before and after COVID-19 epidemic

doi: 10.16835/j.cnki.1000-9817.2021.10.031
  • Received Date: 2021-03-19
  • Rev Recd Date: 2021-03-30
  • Available Online: 2021-10-25
  • Publish Date: 2021-10-25
  •   Objective  To compare myopia prevalence among primary school students in Suqian before and after COVID-19 epidemic, so as to provide a reference for prevention and scientific propaganda of myopia.  Methods  Mass sampling was conducted for pupils from 39 primary schools in Suqian during 2019-2020 for ophthalmic examination, including measurement of uncorrected visial acuity and noncycloplegic refractometry. The data of 76 823 and 76 039 students aged 6 to 12 years were statistically analyzed, and the differences of myopia prevalence in two years were compared under different demographic characteristics.  Results  The myopic rate before and after the epidemic was 30.2% and 36.9%, respectively.The two examinations all obtained that the myopic rate increased with age, the myopic rate of girls (32.3%, 40.0%) was higher than that of boys(28.3%, 34.2%), and the myopic rate of urban students(34.3%, 41.5%) was higher than that of rural students(26.5%, 32.2%). The myopic rate increased significantly at all ages, with students aged 9 to 11 accounted for the most(by 8.6 to 10.7 percentage point), the myopic rate by genders and areas increased significantly, among which female and urban students increased the most(7.7, 7.2 percentage point).  Conclusion  After the epidemic, the myopic rate was 1.2 times that of 2019. The myopic rate increased significantly under different demographic characteristics.The myopic situation was not optimistic.
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