关键词: 学龄前儿童, 视力, 影响因素

Abstract: Objectives To grasp the general situation of the subnormal vision among the preschool children in Minhang district and analysis its influencing factors by conducting questionnaire survey so as to provide effective intervention measures. Methods A total of 2 054 preschool children aged 3~6 years old were recruited from 6 kindergartens of Minhang district.The chart light illumination was 500 lx and the distance between the subjects and the chart was 5-meter far.Then the questionnaire surveys were conducted among the parents.The data was analyzed using SPSS 16.0 statistical software package for Windows.The Student's t Test,Chi square test,Logistic regression analysis statistical method were used. Results The detection rate of subnormal vision among preschool children reached up to 33.9%,in which boy children reached up to 32.8% and girl children was 35.0%,but there was no significant difference between boys and girls.The older group was associated with higher subnormal vision detection rate,and there was significant difference.Children with squinting habit and elder age were the influencing factors of subnormal vision among preschool children. Conclusion Much more attention should be paid to preschool children's eyesight protection work,and comprehensive measures of early intervention to preschool children with subnormal vision should be conducted as early as possible.

Key words: preschool children, subnormal vision, influencing factors