Investigation and analysis of refraction state of primary school students in Haicheng district, Beihai city

Abstract

AIM: To understand the prevalence of refractive state of primary school students in Haicheng district, Beihai city.METHODS: Cross-sectional study and cluster sampling were used. A total of 30 716 students aged 6 to 14 from 15 primary schools in Haicheng district, Beihai city, who had taken physical examination from October 2019 to January 2020, were selected for visual acuity and pupil diopter. SPSS17.0 statistical software was used for data analysis.RESULTS: In the eyes of the 15 primary schools monitored in this study, 30 716 cases had mild myopia(29.62%), 0.50D P50 of the right eye was more negative than that of the left eye. The equivalent spherical mirror was compared between boys and girls. The difference was statistically significant, and the P50 of equivalent spherical mirror of girls was more negative than that of boys.CONCLUSION: With the growth of age, the proportion of mild hyperopia and squarely eyes decreases year by year; The proportion of myopia increases year by year; Among the students with poor eyesight, the number of those who regularly wear glasses is small; However, after wearing glasses, there are still some students whose glasses are not up to standard. The refractive state of the right eye is more negative than that of the left eye; Female students tend to be more negative than male students in the refractive state.

Keywords

• primary school students
• refractive state
• prevalence of myopia
• cross-sectional survey