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...
Main Authors: | , , , , , |
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Format: | Article |
Language: | English |
Published: |
BMC
2020-08-01
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Series: | BMC Ophthalmology |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s12886-020-01619-2 |