Prevalence of Blindness and Visual Impairment in Nigeria: The 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 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 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 کاملPoverty and blindness in Pakistan: results from the Pakistan national blindness and visual impairment survey.
OBJECTIVE To explore the association between blindness and deprivation in a nationally representative sample of adults in Pakistan. DESIGN Cross sectional population based survey. SETTING 221 rural and urban clusters selected randomly throughout Pakistan. PARTICIPANTS Nationally representative sample of 16 507 adults aged 30 or above (95.3% response rate). MAIN OUTCOME MEASURES Associat...
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ژورنال
عنوان ژورنال: Investigative Opthalmology & Visual Science
سال: 2009
ISSN: 1552-5783
DOI: 10.1167/iovs.08-3133