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The file type is
2020". Refractive errors, is one of the priority areas for vision 2020 as they are so common and because corrective spectacles provide a remedy that is cheap, effective and associated with huge functional improvement. Aims and Objectives To estimate the prevalence of refractive errors and colour blindness among 5e15 years school going children in Shimla. Materials and Methods Cross sectional study carried out in the in urban and rural schools of Shimla. In a total of 2000 school children ageddoi:10.1136/jech.2011.142976l.45 fatcat:3u7fjakr6vcitmgwslpb37yt5a