Study on relationship between environmental factors and myopia among students in Suzhou City
HU Jia1, WANG Ying1,2, SHEN Hui1, YANG Hai-bing1
1. Suzhou Municipal Center for Disease Control and Prevention, Suzhou, Jiangsu 215004, China;
2. School of Public Health, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei 430030, China
Abstract：Objective To assess the relationship between environmental factors and myopia so as to explore the factors influencing the differences in the prevalence rates of myopia of students from different grades. Methods A stratified cluster random sampling method was used to select 456 students in first grade of elementary schools and seventh-ninth grades of junior middle schools in Suzhou City in 2018. On-site ophthalmic examination (including distance vision test and cycloplegic refraction) was performed, and questionnaire surveys were conducted to collect the risk factors related to myopia. Results Students in seventh, eighth and ninth grades of junior middle schools had higher prevalence rates of myopia as compared with students in first grade of elementary schools (82.0% vs. 22.4%, 88.8% vs. 22.4%, 88.5% vs. 22.4%, all P<0.05). After adjustment for gender, parental myopia, time of reading and writing after school, time of outdoor activity, time of watching videos and sleeping time per day, the excess prevalence rates of myopia in students in seventh, eighth and ninth grades of junior middle schools reduced by 38.14%, 38.62% and 21.28%, respectively. Conclusions Environmental factors play important roles in the development of myopia in Suzhou students. As for myopia prevention and control, outdoor activities should be increased and time spent watching videos should be decreased.
胡佳, 王瑛, 沈蕙, 杨海兵. 苏州市学生环境因素与近视的关联性研究[J]. 实用预防医学, 2021, 28(1): 53-56.
HU Jia, WANG Ying, SHEN Hui, YANG Hai-bing. Study on relationship between environmental factors and myopia among students in Suzhou City. , 2021, 28(1): 53-56.
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2021, Vol. 28 
