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Prevalence of reduced visual acuity among school-aged children and adolescents in 6 districts of Changsha city: a population-based survey
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. After routi...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7448356/ https://www.ncbi.nlm.nih.gov/pubmed/32847574 http://dx.doi.org/10.1186/s12886-020-01619-2 |