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Prevalence of Eye Diseases and Causes of Visual Impairment in School-Aged Children in Western China

BACKGROUND: The present study investigated the prevalence of refractive error, visual impairment, and eye diseases in school-aged children in western China. METHODS: The survey was done in a representative county (Yongchuan District, Chongqing Municipality) of western China. Cluster random sampling...

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Autores principales: Pi, Lian-Hong, Chen, Lin, Liu, Qin, Ke, Ning, Fang, Jing, Zhang, Shu, Xiao, Jun, Ye, Wei-Jiang, Xiong, Yan, Shi, Hui, Zhou, Xi-Yuan, Yin, Zheng-Qin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Japan Epidemiological Association 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3798578/
https://www.ncbi.nlm.nih.gov/pubmed/22123227
http://dx.doi.org/10.2188/jea.JE20110063
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author Pi, Lian-Hong
Chen, Lin
Liu, Qin
Ke, Ning
Fang, Jing
Zhang, Shu
Xiao, Jun
Ye, Wei-Jiang
Xiong, Yan
Shi, Hui
Zhou, Xi-Yuan
Yin, Zheng-Qin
author_facet Pi, Lian-Hong
Chen, Lin
Liu, Qin
Ke, Ning
Fang, Jing
Zhang, Shu
Xiao, Jun
Ye, Wei-Jiang
Xiong, Yan
Shi, Hui
Zhou, Xi-Yuan
Yin, Zheng-Qin
author_sort Pi, Lian-Hong
collection PubMed
description BACKGROUND: The present study investigated the prevalence of refractive error, visual impairment, and eye diseases in school-aged children in western China. METHODS: The survey was done in a representative county (Yongchuan District, Chongqing Municipality) of western China. Cluster random sampling was used to select children aged 6 to 15 years. We conducted door-to-door surveys and eye examinations including optometry, stereoscopic vision test, eye position and eye movement, slit lamp examination of the anterior segment, retinoscopy, and fundus examination after cycloplegia with 1% cyclopentolate. RESULTS: Among 3469 children, data were available for 3079 (88.76%). The prevalences of eye diseases were, in descending order, refractive error (20.69%; 637/3079), conjunctivitis (11.76%; 362/3079), amblyopia (1.88%; 58/3079), color vision defect (0.52%; 16/3079), keratitis (0.36%; 11/3079), strabismus (0.29%; 9/3079), cataract (0.23%; 7/3079), pathologic myopia (0.19%; 6/3079), and ocular trauma (0.13%; 4/3079). The prevalence of corneal leucoma, corneal staphyloma, optic neuropathy, macular degeneration, and myelinated nerve fibers was 0.03% (1/3079) for each. The prevalence of visual impairment was 7.70% (237/3079), and the major causes of visual impairment were uncorrected refractive error (86.08%; 204/237), amblyopia (9.70%; 23/237), pathologic myopia (1.27%; 3/237), congenital cataract (0.42%; 1/237), and others (2.11%; 5/237). CONCLUSIONS: Among school-aged children in a less developed area of western China, refractive error was the most prevalent eye disorder, and uncorrected refractive error was the main cause of visual impairment.
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spelling pubmed-37985782013-12-03 Prevalence of Eye Diseases and Causes of Visual Impairment in School-Aged Children in Western China Pi, Lian-Hong Chen, Lin Liu, Qin Ke, Ning Fang, Jing Zhang, Shu Xiao, Jun Ye, Wei-Jiang Xiong, Yan Shi, Hui Zhou, Xi-Yuan Yin, Zheng-Qin J Epidemiol Original Article BACKGROUND: The present study investigated the prevalence of refractive error, visual impairment, and eye diseases in school-aged children in western China. METHODS: The survey was done in a representative county (Yongchuan District, Chongqing Municipality) of western China. Cluster random sampling was used to select children aged 6 to 15 years. We conducted door-to-door surveys and eye examinations including optometry, stereoscopic vision test, eye position and eye movement, slit lamp examination of the anterior segment, retinoscopy, and fundus examination after cycloplegia with 1% cyclopentolate. RESULTS: Among 3469 children, data were available for 3079 (88.76%). The prevalences of eye diseases were, in descending order, refractive error (20.69%; 637/3079), conjunctivitis (11.76%; 362/3079), amblyopia (1.88%; 58/3079), color vision defect (0.52%; 16/3079), keratitis (0.36%; 11/3079), strabismus (0.29%; 9/3079), cataract (0.23%; 7/3079), pathologic myopia (0.19%; 6/3079), and ocular trauma (0.13%; 4/3079). The prevalence of corneal leucoma, corneal staphyloma, optic neuropathy, macular degeneration, and myelinated nerve fibers was 0.03% (1/3079) for each. The prevalence of visual impairment was 7.70% (237/3079), and the major causes of visual impairment were uncorrected refractive error (86.08%; 204/237), amblyopia (9.70%; 23/237), pathologic myopia (1.27%; 3/237), congenital cataract (0.42%; 1/237), and others (2.11%; 5/237). CONCLUSIONS: Among school-aged children in a less developed area of western China, refractive error was the most prevalent eye disorder, and uncorrected refractive error was the main cause of visual impairment. Japan Epidemiological Association 2012-01-05 /pmc/articles/PMC3798578/ /pubmed/22123227 http://dx.doi.org/10.2188/jea.JE20110063 Text en © 2012 Japan Epidemiological Association. http://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the terms of Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Original Article
Pi, Lian-Hong
Chen, Lin
Liu, Qin
Ke, Ning
Fang, Jing
Zhang, Shu
Xiao, Jun
Ye, Wei-Jiang
Xiong, Yan
Shi, Hui
Zhou, Xi-Yuan
Yin, Zheng-Qin
Prevalence of Eye Diseases and Causes of Visual Impairment in School-Aged Children in Western China
title Prevalence of Eye Diseases and Causes of Visual Impairment in School-Aged Children in Western China
title_full Prevalence of Eye Diseases and Causes of Visual Impairment in School-Aged Children in Western China
title_fullStr Prevalence of Eye Diseases and Causes of Visual Impairment in School-Aged Children in Western China
title_full_unstemmed Prevalence of Eye Diseases and Causes of Visual Impairment in School-Aged Children in Western China
title_short Prevalence of Eye Diseases and Causes of Visual Impairment in School-Aged Children in Western China
title_sort prevalence of eye diseases and causes of visual impairment in school-aged children in western china
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3798578/
https://www.ncbi.nlm.nih.gov/pubmed/22123227
http://dx.doi.org/10.2188/jea.JE20110063
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