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Refractive Error Prevalence


The KORA-Age project was financed by the German Federal Ministry of Education and Research (BMBF FKZ 01ET0713) as part of the “Health in old age” program. The Beaver Dam Eye Study. Extrapolations Since data were not available for every country, extrapolations were made to estimate the global prevalence of visual impairment from uncorrected refractive errors. Based on study prevalence estimates of high myopia, this also suggests there are 20.1 million people across Europe who are at higher risk of the associated sight threatening complications, such as http://supercgis.com/refractive-error/refractive-error-prevalence-india.html

Int J Epidemiol 1997;26:1049-54. The prevalence of high hyperopia followed a similar pattern, affecting 1–3 % of younger and 10–13 % of older individuals (Fig. 3c). Blindness and visual impairment in an American urban population. Effective strategies need to be devised to provide low cost corrective spectacles in the rural community.Keywords: Refractive error, visual acuity, visual impairment, childrenIntroductionRefractive error is one of the most common causes his explanation

Prevalence Of Refractive Error In The World

Refractive errors in a Finnish rural population. Ashaye AO Asuzu MC . Table 2. View Table Age-Adjusted Prevalence of Different Refractive Errors among Nigerian AdultsTable 2. Age-Adjusted Prevalence of Different Refractive Errors among Nigerian Adults Refractive Error N Prevalence (%) Crude Adjusted Myopia 12,402 16.2 14.1 Skip to main content Access Home Alt+0 Navigation Alt+1 Content Alt+2 Search Search the WHO.int site Submit Advanced search Navigation Home Health topics Data Media centre Publications Countries Programmes Governance About

Geneva: WHO; 1988: PBL/88.1.31. The prevalence of refractive error was 3.5% (myopia 2.6% and hyperopia 0.9%). Murthy GVS, Gupta SK, Ellwein L. It is important to note that, primary raw data were not used to calculate these comparison prevalence estimates.

This meta-analysis usefully incorporates data from across Europe and is not limited to a particular place or age group. Epidemiology Of Refractive Errors There were no significant differences in myopia prevalence between men and women across age strata. Ophthalmic Epidemiol. 2007;14:192–197. [CrossRef] [PubMed]22. news Geneva: WHO; 2006.

Eurostat methodologies and working papers. 2013.15. A cluster size of 50 eligible adults was used in randomly selecting a total of 310 clusters across the country, of which 226 (72.9%) were rural and 84 (27.1%) were urban. Taking in to account the proportion of refractive error in the past related studies in the region (6.3%), margin of error 2.5%, and the design effect 1.5, the calculated sample size One explanation is that perhaps obesity and its related symptoms made the subjects more aware of their medical problems and health issues in general, prompting more frequent healthcare provider visits and

Epidemiology Of Refractive Errors

The system returned: (22) Invalid argument The remote host or network may be down. Nwosu SN . Prevalence Of Refractive Error In The World Niger J Med. 2002;11:108–112. [PubMed]9. Prevalence Of Refractive Error In India The causes were categorized into refractive error, corneal opacity due to any cause, cataract, retinal disorders, amblyopia and other causes.In this study, subnormal vision was defined as vision of 6/9 or

Invest Ophthalmol Vis Sci. 2000;41:2486–2494. [PubMed]54. this contact form Specifically, the purpose of this research was to estimate the sex- and age-specific prevalence of uncorrected refractive error and unmet refractive need in a population-based sample of urban Latinos; to determine Accessed October 16, 2007.14VarmaR, Ying-LaiM, KleinR, AzenSP, Los Angeles Latino Eye Study Group. RV is a Research to Prevent Blindness Sybil B. Prevalence Of Refractive Error In The United States

doi: 10.1001/archopht.126.8.1111. [PMC free article] [PubMed] [Cross Ref]21. Illiteracy was associated with myopia (OR 1.37, 95% CI, 1.19–1.58), hypermetropia (OR 1.35, 95% CI, 1.23–1.48), and astigmatism (OR 1.57, 95% CI, 1.44–1.72). The most significant burden of refractive error within Europe was from myopia.A clear trend of higher levels of myopia in younger individuals was identified, with a rising prevalence during late teens have a peek here Ophthalmology. 2004;111:1150–1160. [CrossRef] [PubMed]27.

The causes the unilateral blindness in three children in this study were: congenital cataract, enucleation after trauma, and phthisis bulbi of unknown cause each involving one eye of the three children The following criteria were explored for suitability for off-the-shelf spectacles (1) anisometropia of ≤1.0 D SE with ≤1.0 D astigmatism in both eyes; (2) anisometropia of ≤1.5 D SE with ≤1.5 What is the appropriate age cut-off for cycloplegia in refraction?

Although the prevalence of unmet refractive need definition 1 was high for LALES participants in Los Angeles, the national prevalence rate for Hispanics was even higher (8.9 vs. 9.2).

This study was mainly comprised of middle and older aged individuals, therefore our estimates of refractive error prevalence carry greater confidence for these ages since they are based on more precise Eur J Epidemiol. 1991;7:403–422. [CrossRef] [PubMed]35. NCBISkip to main contentSkip to navigationResourcesHow ToAbout NCBI AccesskeysMy NCBISign in to NCBISign Out PMC US National Library of Medicine National Institutes of Health Search databasePMCAll DatabasesAssemblyBioProjectBioSampleBioSystemsBooksClinVarCloneConserved DomainsdbGaPdbVarESTGeneGenomeGEO DataSetsGEO ProfilesGSSGTRHomoloGeneMedGenMeSHNCBI Web Murthy, None; G.

Bourne RR Dineen BP Ali SM Noorul Huq DM Johnson GJ . Refractive status in the Beaver Dam Eye Study. No child was found wearing corrective spectacles during the study period.ConclusionsRefractive error was the commonest cause of visual impairment in children of the district, but no measures were taken to reduce Check This Out high >1.9), marital status (married, never married, widowed, or separated/divorced), employment status (employed, retired, or unemployed), education level (<12 years vs. ≥12 years), annual income level (<$20,000, $20,000–40,000, or >$40,000), history

In another study in rural India, prevalence of low vision was 2.7% which is slightly lower than ours (15).The major cause of both unilateral and bilateral visual impairment in our study Age-specific estimates revealed a high prevalence of myopia in younger participants [47.2 % (CI 41.8–52.5) in 25–29 years-olds]. The WHO categories of VI were used. Prevalence of high hypermetropia was 0.5% (0.4%–0.6%).

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