Causes of Blindness and Visual Impairment in Nigeria: The Nigeria National Blindness and Visual Impairment Survey
نویسندگان
چکیده
منابع مشابه
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 procedures were used to identify a nationally representative sample of 15,027 persons >or=40 years of age. Distance vision was measured with a reduced logMAR tumbling E-chart. Clinical examination included a b...
متن کاملEcological determinants of blindness in Nigeria: the Nigeria National Blindness and Visual Impairment Survey.
OBJECTIVE To determine the prevalence and causes of visual loss in different ecological zones across Nigeria. METHODS A population-based survey using multi-stage, stratified, cluster random sampling with probability proportional to size comprising a nationally representative sample of adults aged > or = 40 years from six ecological zones. OUTCOME MEASURES Distance vision was measured using ...
متن کاملPrevalence 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 probability proportional to size procedures was used to identify a cross-sectional nationally representative sample of 15,027 persons > or = 40 years of age from all 36 states in Nigeria and the Federal Capital Territ...
متن کاملPrevalence 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, stratified (rural/urban), cluster random sampling, with probability proportional-to-size procedures, was used to select a nationally representative, cross-sectional sample of adults 30 years of age or older. Each...
متن کاملRisk factors for open-angle glaucoma in Nigeria: results from the Nigeria National Blindness and Visual Impairment Survey
BACKGROUND The glaucoma-specific blindness prevalence in Nigeria (0.7 %, 95 % CI 0.6-0.9 %) among those aged ≥40 years is one of the highest ever reported. This study determined the risk factors for open-angle glaucoma (OAG) in adults examined in the Nigeria National Blindness and Visual Impairment Survey. METHODS A nationally representative sample of 13,591 people aged ≥40 years in 305 clust...
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ژورنال
عنوان ژورنال: Investigative Opthalmology & Visual Science
سال: 2009
ISSN: 1552-5783
DOI: 10.1167/iovs.09-3507