Global magnitude of visual impairment caused by uncorrected refractive errors in 2004
نویسندگان
چکیده
منابع مشابه
Global magnitude of visual impairment caused by uncorrected refractive errors in 2004.
Estimates of the prevalence of visual impairment caused by uncorrected refractive errors in 2004 have been determined at regional and global levels for people aged 5 years and over from recent published and unpublished surveys. The estimates were based on the prevalence of visual acuity of less than 6/18 in the better eye with the currently available refractive correction that could be improved...
متن کاملEstimation of global visual impairment due to uncorrected refractive error.
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متن کاملGlobal cost of correcting vision impairment from uncorrected refractive error.
OBJECTIVE To estimate the global cost of establishing and operating the educational and refractive care facilities required to provide care to all individuals who currently have vision impairment resulting from uncorrected refractive error (URE). METHODS The global cost of correcting URE was estimated using data on the population, the prevalence of URE and the number of existing refractive ca...
متن کاملInfluence of uncorrected refractive error and unmet refractive error on visual impairment in a Brazilian population
BACKGROUND The World Health Organization (WHO) definitions of blindness and visual impairment are widely based on best-corrected visual acuity excluding uncorrected refractive errors (URE) as a visual impairment cause. Recently, URE was included as a cause of visual impairment, thus emphasizing the burden of visual impairment due to refractive error (RE) worldwide is substantially higher. The p...
متن کاملThe prevalence of uncorrected refractive errors in underserved rural areas
Purpose To determine the prevalence of uncorrected refractive errors, need for spectacles, and the determinants of unmet need in underserved rural areas of Iran. Methods In a cross-sectional study, multistage cluster sampling was done in 2 underserved rural areas of Iran. Then, all subjects underwent vision testing and ophthalmic examinations including the measurement of uncorrected visual ac...
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ژورنال
عنوان ژورنال: Bulletin of the World Health Organization
سال: 2008
ISSN: 0042-9686
DOI: 10.2471/blt.07.041210