Refractive error and visual impairment in school children in rural southern China.

Refractive error and visual impairment in school children in rural southern China. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Refractive error and visual impairment in school children in rural southern China. Abstract Text:

Mingguang He,Wenyong Huang,Yingfeng Zheng,Li Huang,Leon B Ellwein,

PURPOSE: To assess the prevalence of refractive error and visual impairment in school children in a rural area of southern China. DESIGN: Prospective cross-sectional survey. PARTICIPANTS: Two thousand four hundred children from junior high schools in Yangxi County. METHODS: Random selection of classes from the 3 junior high school grade levels was used to identify the study sample. Children from 36 classes in 13 schools were examined in April 2005. The examination included visual acuity (VA) testing; ocular motility evaluation; cycloplegic autorefraction; and examination of the external eye, anterior segment, media, and fundus. MAIN OUTCOME MEASURES: Distance VA and cycloplegic refraction. RESULTS: Among 2515 enumerated children, 2454 (97.6%) were examined. The study population consisted of the 2400 children between 13 and 17 years old. Prevalences of uncorrected, presenting, and best-corrected VA < or = 20/40 in the better eye were 27.0%, 16.6%, and 0.46%, respectively. Sixty percent of those who could achieve acuity > or =20/32 in at least one eye with best correction were without the necessary spectacles. Refractive error was the cause in 97.1% of eyes with reduced vision; amblyopia, 0.81%; other causes, 0.67%; and unexplained causes, 1.4%. Myopia (spherical equivalent, -0.50 diopters [D] or more in either eye) affected 36.8% of 13-year-olds, increasing to 53.9% of 17-year-olds. Myopia was associated with higher grade level, female gender, schooling in the county urban center, and higher parental education. Hyperopia (+2.00 D or more) affected approximately 1.0% in all age groups. Astigmatism (> or =0.75 D) was present in 25.3% of all children. CONCLUSIONS: Reduced vision because of uncorrected myopia is a public health problem among school-age children in rural China. Effective VA screening strategies are needed to eliminate this easily treated cause of visual impairment.

Refractive error and visual impairment in school children in rural southern China. Publishing Authors By Initials

M He,W Huang,Y Zheng,L Huang,LB Ellwein,

For similar persons: disabled persons: visually impaired persons research abstracts see: persons: disabled persons: visually impaired persons research

PUBMED ID PMID:

MEDLINE DATE:

Refractive error and visual impairment in school children in rural southern China. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Ophthalmology

VOLUME: 114

Page Numbers: 374-82

Journal Abbreviation: Ophthalmology

ISSN: 1549-4713

DAY: 21

MONTH: 11

YEAR: 2006

Refractive error and visual impairment in school children in rural southern China. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 7802443

Refractive error and visual impairment in school children in rural southern China. Keywords Mesh Terms:

KEYWORDS: Visually Impaired Persons

MESH TERMS: statistics & numerical data

Chemical & Substance for Abstract: Refractive error and visual impairment in school children in rural southern China. Information

Substance Name: Cyclopentolate

Registry Number: 512-15-2

Grant and Affiliation Information for Refractive error and visual impairment in school children in rural southern China.

AFFILIATION: Key Laboratory of Ophthalmology and Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China.

Country: United States

AGENCY: United States NEI

GRANT: N01-EY-2103

ACRONYM: EY

MEDLINETA: Ophthalmology

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Refractive error and visual impairment in school children in rural southern China Related Publications

• A population based eye survey of older adults in Tirunelveli district of south India: blindness, cataract surgery, and visual outcomes.
• Case finding for refractive errors: assessment of refractive error and visual impairment in children.
• Cataract surgery in India: results of a 1995 survey of ophthalmologists.
• Ethnicity-specific prevalences of refractive errors vary in Asian children in neighbouring Malaysia and Singapore.
• More Research Needed to Assess the Magnitude of Refractive Errors World-wide.
• Prevalence and causes of vision impairment and blindness in older adults in Brazil: the sao paulo eye study.
• Prevalence and causes of visual impairment in low-middle income school children in Sao Paulo, Brazil.
• Prevalence of blindness and cataract surgery in Nepal.
• Refractive error and visual impairment in school children in rural southern China.
• The pattern of cataract surgery in India: 1992.
• The prevalence of visual impairment in school children of upper-middle socioeconomic status in kathmandu.
• Visual acuity and quality of life outcomes in cataract surgery patients in Hong Kong.