Prevalence of reduced visual acuity among school-aged children and adolescents in 6 districts of Changsha city: a population-based survey

Abstract Background To calculate and evaluate the prevalence of reduced uncorrected distant visual acuity (UCDVA) in primary, middle and high schools in 6 districts of Changsha, Hunan, China. Methods A population-based retrospective study was conducted in 239 schools in 6 districts of Changsha. Afte...

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Bibliographic Details
Main Authors: Menglian Liao, Zehuai Cai, Muhammad Ahmad Khan, Wenjie Miao, Ding Lin, Qiongyan Tang
Format: Article
Language:English
Published: BMC 2020-08-01
Series:BMC Ophthalmology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12886-020-01619-2