Retinitis pigmentosa in India: a genetic and segregation analysis.

Abstract excerpt

Seventy-eight families with retinitis pigmentosa, presenting at the genetic clinic of Sankara Nethralaya, Madras, over a period of 6 months (from April to September 1993), were assessed to determine the different genetic types: 9% were autosomal dominant; 36%, autosomal recessive; 3%, X-linked recessive; 44%, isolated cases and 8%, undetermined genetic type. A high incidence of consanguinity was observed in...

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