Retinitis pigmentosa in Southern Africa

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Abstract
Greenberg J, Bartmann L, Ramesar R, Beighton P. Retinitis pigmentosa in Southern Africa.Clin Genet 1993: 44: 232–235. © Munksgaard, 1993Retinitis pigmentosa (RP) is a heterogeneous group of inherited retinal disorders which are a common cause of genetic blindness. The relative frequencies of the different forms of RP in South Africa, as determined from the register at the DNA banking centre for RP at the Department of Human Genetics, University of Cape Town, are presented and discussed. Of the 125 families analysed, 29 (23%) showed autosomal dominant, 33 (27%) autosomal recessive and 3 (3%) X‐linked inheritance. In 10 families the pedigree data were insufficient to allow accurate genetic subtyping and a further 50 patients were sporadic without a family history of RP or other syndromic features which would allow categorization.