School-based epidemiology study of myopia in Tianjin, China.

ABSTRACT:

Purpose

To study the epidemiology of myopia in school-aged children in Tianjin and the relationship between visual acuity-based screening and refraction-based screening.

Method

This school-based prospective cohort study was performed on children from 42 elementary schools and 17 middle schools in Tianjin, China. Totally 14,551 children, ages ranging from 5 to 16 years, were included in this study. Uncorrected visual acuity (UCVA) was determined by logarithmic tumbling E chart. Non-cycloplegic photorefraction was examined by the Spot (v2.1.4) photoscreener. The relationship between the UCVA and refractive error was investigated for different age groups.

Results

The overall prevalence of myopia at this school based screen is 78.2%, ranged from 10% at age of 5 to 95% at

SUBMITTER: Wang J 

PROVIDER: S-EPMC7481173 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature