منابع مشابه
Refractive error in Nigerian adults: prevalence, type, and spectacle coverage.
PURPOSE To provide data on prevalence and types of refractive error and the spectacle-wearing rate among adults in Nigeria and the degree to which the need for distance correction could be met by off-the-shelf spectacles. METHODS Multistage, stratified, cluster random sampling with probability proportional to size was used to identify a nationally representative sample of 15,027 persons aged ...
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...
متن کاملRefractive error blindness.
Recent data suggest that a large number of people are blind in different parts of the world due to high refractive error because they are not using appropriate refractive correction. Refractive error as a cause of blindness has been recognized only recently with the increasing use of presenting visual acuity for defining blindness. In addition to blindness due to naturally occurring high refrac...
متن کاملUncorrected refractive error.
These include: References http://bjo.bmjjournals.com/cgi/content/full/90/5/521#BIBL This article cites 27 articles, 14 of which can be accessed free at: Rapid responses http://bjo.bmjjournals.com/cgi/eletter-submit/90/5/521 You can respond to this article at: service Email alerting top right corner of the article Receive free email alerts when new articles cite this article sign up in the box a...
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...
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ژورنال
عنوان ژورنال: Current Opinion in Ophthalmology
سال: 2017
ISSN: 1040-8738
DOI: 10.1097/icu.0000000000000376