线上学习模式对青少年近视的影响

Effects of online learning on children's vision

目的分析线上学习模式对青少年视力的影响。方法选取安徽理工大学附属眼科医院2019年12月1-31日(线上授课前)的视力筛查数据和2020年12月31日至2021年1月31日(线上授课后)视力筛查数据,两组数据均来自淮南地区的中小学校,两组数据以年龄段分组:6~12岁(小学组,n=1124),>12~15岁(初中组,n=552),>15~18岁(高中组,n=554)。应用SPSS 22.0统计学软件分析两组各年龄段在线上授课前后视力的变化。结果线上授课前,近视率为52.70%,其中6~12岁近视率为25.31%,>12~15岁近视率为71.89%,>15~18岁近视率为88.34%。线上授课后,近视率为62.40%,其中6~12岁近视率为40.25%,>12~15岁近视率为78.60%,>15~18岁近视率为91.88%。线上授课前后近视率差异有统计学意义(χ^(2)=21.44,P<0.001)。结论线上学习模式对青少年视力有较大的影响,应制定相应措施,加强对青少年近视的预防和防控力度。

Objective To investigate the effects of online learning on children's vision.Methods We collected the vision data of children from the Huainan area recorded during December 1-31,2019(before online learning)and from December 31,2020 to January 31,2021(after online learning)in Affiliated Ophthalmic Hospital of Anhui University of Science and Technology.These data were divided into three groups according to different age brackets:primary school(6-12 years,n=1124),middle school group(>12-15 years,n=552),and junior high group(>15-18 years,n=554).The change in vision after online learning relative to before online learning was analyzed using SPSS 22.0 software.Results Before online learning,the overall incidence of myopia was 52.70%,the incidence of myopia was 25.31%for 6-12 years old,71.89%for>12-15 years old,and 88.34%for>15-18 years old.After online learning,the overall incidence of myopia was 62.40%,the incidence of myopia was 40.25%for 6-12 years old,78.60%for>12-15 years old,and 91.88%for>15-18 years old.There were significant differences in the prevalence of myopia in each age bracket between before and after online learning(χ^(2)=21.44,P<0.001).Conclusion Online learning greatly affects the vision of adolescents.Corresponding measures should be formulated to strengthen the prevention and control of myopia in children.