PLoS ONE · 2013 · 90 citations · 28 references
Purpose: Using a world-wide, population-based dataset of adults, we sought to determine the frequency of far visual difficulty and its associated risk factors.
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Global data on visual impairment in the year 2002.
Serge Resnikoff, Donatella Pascolini, Daniel Etya’ale et al. · PubMed · 2004 · 4.2K citations · Full text
AGE STANDARDIZATION OF RATES: A NEW WHO STANDARD
Omar B. Ahmad, Cynthia Boschi-Pinto, Alan D López et al. · 2000 · 1.7K citations