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Childhood blindness in the context of VISION 2020--the right to sight.
The major causes of blindness in children vary widely from region to region, being largely determined by socioeconomic development, and the availability of primary health care and eye care services.Expand
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Genes and environment in refractive error: the twin eye study.
PURPOSE A classical twin study was performed to examine the relative importance of genes and environment in refractive error. METHODS Refractive error was examined in 226 monozygotic (MZ) and 280Expand
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Causes of blindness and visual impairment in Nigeria: the Nigeria national blindness and visual impairment survey.
PURPOSE Determine causes of blindness and visual impairment among adults aged >or=40 years. METHODS Multistage, stratified, cluster random sampling with probability proportional to size proceduresExpand
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Prevalence of blindness and visual impairment in Nigeria: the National Blindness and Visual Impairment Study.
PURPOSE To determine the prevalence of blindness and visual impairment among adults aged > or = 40 years in Nigeria. METHODS Multistage, stratified, cluster random sampling with probabilityExpand
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How much soil do young children ingest: an epidemiologic study.
Sixty-four children aged 1-4 years were evaluated for the extent to which they ingest soil. The study followed the soil tracer methodology of S. Binder, D. Sokal, and D. Maughan (1986, Arch. Environ.Expand
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Characteristics of Infants With Severe Retinopathy of Prematurity in Countries With Low, Moderate, and High Levels of Development: Implications for Screening Programs
Objective. Retinopathy of prematurity (ROP) is a potentially avoidable cause of blindness in children. The proportion of blindness as a result of ROP varies greatly among countries depending on theirExpand
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Causes and temporal trends of blindness and severe visual impairment in children in schools for the blind in North India
Aims: To describe the causes of severe visual impairment and blindness (SVI/BL) in children in schools for the blind in north India, and explore temporal trends in the major causes. Methods: A totalExpand
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The key informant method: a novel means of ascertaining blind children in Bangladesh
Background: Most information on the causes of blindness has come from examining children in special education. To obtain a more representative population-based sample of children, a novel method wasExpand
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Frailty in HIV-Infected Adults in South Africa
Objectives:Some evidence suggests that HIV infection is associated with premature frailty—a syndrome typically viewed as being related to ageing. We determined the prevalence and predictors ofExpand
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Prevalence of blindness and visual impairment in Pakistan: the Pakistan National Blindness and Visual Impairment Survey.
PURPOSE To determine the prevalence of blindness and visual impairment in adults aged 30 years and older in Pakistan and to assess socio-demographic risk factors. METHODS Multistage, stratifiedExpand
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