Fig. 1. Comparison of age-specific rates of blindness in Australia and India. Data shown are for blindness defined as presenting distance visual acuity less than 20/200 or visual field less than 10 degrees in the better eye in the Australian study, and presenting distance visual acuity less than 20/200 or visual field less than 20 degrees in the better eye in the Indian study. Blindness in those younger than 40 years of age was not assessed in the Australian study. (Data from Dandona and associates20 and VanNewkirk and associates.22)