THỰC TRẠNG CẬN THỊ Ở HỌC SINH TIỂU HỌC KHU VỰC MIỀN NÚI TỈNH NGHỆ AN

Abstract

Objectives: Determining the current situation and evaluating some factors related to myopia in elementary school students in mountainous areas in Nghe An province. Subjects and methods: Cross-sectional descriptive study, 2920 elementary school students (aged 6-10) at mountainous areas of nghe an province from January 2023 to March 2023. Results: The prevalence of myopia in elementary school students at mountainous areas of nghe an province was 18.79%. Mild myopia accounts for 64.67%, severe myopia accounts for 5.46% and bilateral myopia accounts for 77.96%. The prevalence of myopia in women is higher than in men; increases with age (grade level);  The prevalence of myopia in students whose parents both have refractive errors is highest, and students whose siblings have refractive errors are more myopia than students who do not have siblings with refractive errors. The risk of myopia increased with OR: 1.38 in the group with one parent having myopia and OR: 2.59 in the group with both parents having refractive error. Near-looking time after regular school hours of more than 2 hours/day has a higher risk of myopia than the group with near-looking time less than 2 hours/day with OR: 1.55. The more time spent participating in outdoor activities, the lower the risk of myopia; OR: 0.8 in the group over 1 hour; (OR: 0.45) in the group 2 to 3 hours and from 3 hours or more with OR: 0.46; 2 hours of outdoor activity is a protective threshold for the risk of myopia. Spending more than 3 hours outdoors does not reduce the risk of myopia more than the 2-hour group.