Investigation of vision and refractive status of preschool children in Xiangfang District of Harbin City from 2016 to 2023
Objective To understand and analyze the refractive status of preschool children in Xiangfang District of Harbin City from 2016 to 2023,and to provide a basis for the prevention and control of refractive errors in children.Methods A cluster random sampling approach was utilized to collect basic information,uncorrected distance visual acuity,and refractive power data through desktop automatic computer optometry from preschool children aged 3-6 years in 13 kindergartens located in Xiangfang District,Harbin.Statistical analysis was performed using SPSS 24.0,the comparison of count data between groups and trend analysis were performed using the chi-square test,while the comparison of measurement data between groups was performed using analysis of variance,with the test level α=0.05.Results A total of 6 809 children participated in visual acuity examinations,among whom 785(11.53％)were identified with low vision.The prevalence rates of low vision among 3-6 year-olds were 13.83％,10.92％,5.06％,and 22.58％,respectively.A total of 8 714 children participated in refraction examinations,identifying 642(7.37％)with myopia,41(0.47％)with hyperopia,367(4.21％)with astigmatism,725(8.32％)with anisometropia,and 5 858(67.23％)with insufficient hyperopic reserve.Conclusions The prevalence of suboptimal vision and refractive errors among preschool children in Xiangfang District of Harbin is significantly high,demonstrating a tendency of low age and high incidence.To address this issue,it is crucial to implement regular eye health screenings for preschool children,establish individualized refractive profiles,and offer personalized educational guidance,so that to facilitate the early detection,early diagnosis and treatment of low normal vision and related refractive eye disorders.
subnormal visionrefractive errorepidemiological studyincidencepreschool children
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