Distribution of poor vision and screened myopia among children and adolescents in six provinces of China,2023
Objective To understand the distributional characteristics of poor vision and screening myopia among children and adolescents in six provinces of China,and to provide scientific reference basis for the development of effective myopia prevention and control strategies in the future.Methods From March to July 2023,a non-probabilistic sampling method was used to select 181 981 school students for distant vision screening and computer optometry in six provinces cov-ered by the project team.The x2 test was used to compare the differences in the detection of poor vision and screened myopia among children and adolescents in different genders,school grades and urban and rural areas.Results The detection rate of poor vision in children and adolescents was 60.4%,and the detection rate of screened myopia was 51.0%.The results of x2 test showed that the detection rates of poor vision and screened myopia in women were 63.5%and 53.8%,respectively,which were higher than those in men(57.6%and 48.4%).The prevalence of impaired vision in kindergarten children was 68.2%,higher than that in primary school(grades 1 to 3)(34.4%),primary school(grades 4 to 6)(53.7%),mid-dle school(70.6%),lower than that in high school(83.0%).The detection rate of screening myopia in kindergarten children was 8.6%,which was lower than that in elementary school(grades 1 to 3)(20.2%),elementary school(grades 4 to 6)(46.8%),middle school(67.3%),and high school(80.5%).The detection rate of poor vision in urban chil-dren and adolescents was 61.1%,which was higher than that in rural children and adolescents(59.4%).The detection rate of screened myopia in urban children and adolescents was 50.7%,which was lower than that in rural children and ado-lescents(51.4%).The above differences were statistically significant(P<0.05).Conclusion The detection rates of both poor vision and screened myopia in children and adolescents in China are high.In the future,public awareness of vision protection should be raised,and scientific and effective myopia prevention and control strategies should be formulated to re-duce the incidence of myopia in children and adolescents in the future.
MyopiaChildren and adolescentsPoor visionScreened myopia