IN 2012, a study on the prevalence of retinitis pigmentosa in India was published in the journal Acta Opthalmologica. The study, which was headed by Dr Jost Jonas from Germany and Dr Vinay Nangia, director, Suraj Eye Institute, Nagpur, brought to light some crucial data-the prevalence of RP was about one in 750 in the adult population in India. The study also found that the prevalence was significantly higher in the rural areas of central India-1:372.
Compared with studies that were held in the west, both the numbers were shockingly high. For example, a 1984 study in Maine, the United States, had shown a prevalence of 1:4,756. Another study in 1984, in Birmingham, England, showed it to be 1:4,869.
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