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The Nigerian national blindness and visual impairment survey: Rationale, objectives and detailed methodology

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Author(s): Dineen Brendan | Gilbert Clare | Rabiu Mansur | Kyari Fatima | Mahdi Abdull | Abubakar Tafida | Ezelum Christian | Gabriel Entekume | Elhassan Elizabeth | Abiose Adenike | Faal Hannah | Jiya Jonathan | Ozemela Chinenyem | Lee Pak | Gudlavalleti Murthy

Journal: BMC Ophthalmology
ISSN 1471-2415

Volume: 8;
Issue: 1;
Start page: 17;
Date: 2008;
Original page

ABSTRACT
Abstract 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 40 years and above was selected. Children aged 10–15 years and individuals aged
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