Sarah Polack, David Yorston, Antonio López-Ramos, Sergio Lepe-Orta, Rogerio Martins Baia, Luciano Alves, Carlos Grau-Alvidrez, Pedro Gomez-Bastar, Hannah Kuper
OBJECTIVE: To estimate the prevalence and causes of blindness in Chiapas, Mexico, and to assess the feasibility of using the Rapid Assessment of Avoidable Blindness framework to estimate diabetic retinopathy (DR) prevalence. DESIGN: A cross-sectional population-based survey. PARTICIPANTS: Sixty-six clusters of 50 people 50 years of age or older were selected by probability proportionate to size sampling. Households within clusters were selected through compact segment sampling...
May 2012: Ophthalmology