Visual Difficulty and Employment Status in the World

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Visual Difficulty and Employment Status in the World

PURPOSE Using a world-wide, population-based dataset, we sought to examine the relationship between visual difficulty and employment status. METHODS The World Health Survey was conducted in 70 countries throughout the world in 2003 using a random, multi-stage, stratified, cluster sampling design. Far vision was assessed by asking about the level of difficulty in seeing and recognizing a perso...

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ژورنال

عنوان ژورنال: PLoS ONE

سال: 2014

ISSN: 1932-6203

DOI: 10.1371/journal.pone.0088306