The Sri Lanka National Blindness, Visual Impairment and Disability Survey: rationale, objectives and detailed methodology
نویسندگان
چکیده
منابع مشابه
The Nigerian national blindness and visual impairment survey: Rationale, objectives and detailed methodology
BACKGROUND Despite having the largest population in Africa, Nigeria has no accurate population based data to plan and evaluate eye care services. A national survey was undertaken to estimate the prevalence and determine the major causes of blindness and low vision. This paper presents the detailed methodology used during the survey. METHODS A nationally representative sample of persons aged 4...
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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 کاملA survey of severe visual impairment and blindness in children attending thirteen schools for the blind in sri lanka.
PURPOSE To identify the causes of blindness and severe visual impairment (BL/SVI) in children attending schools for the blind in Sri Lanka, and to provide optical devices and ophthalmic treatment where indicated. METHODS Two hundred and six children under 16 years from 13 schools for the blind in Sri Lanka were examined by a team of ophthalmologists and optometrists. Data were entered in the ...
متن کاملRefractive Error in Children in Cambodia and Childhood Blindness/Severe Visual Impairment in Sri Lanka
This study has two main components with a common theme of paediatric ophthalmology in Asia. The first component aimed to assess the prevalence of refractive error in 12-14 year old children in urban Phnom Penh and rural Kandal Provinces of Cambodia. The prevalence of refractive error in Cambodia has not been previously studied and is important for the planning and implementation of refraction s...
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ژورنال
عنوان ژورنال: Ceylon Medical Journal
سال: 2018
ISSN: 2386-1274,0009-0875
DOI: 10.4038/cmj.v63i5.8735