More than 70 genes (over 3000 mutations) are known to cause non-syndromic retinitis pigmentosa (RP), including autosomal dominant (AD), autosomal recessive (AR), X-linked, and simplex forms (inheritance not known). The AD form accounts for approximately 15-25% of cases; AR, 5-20%; X-linked, 5-15%; and simplex, 40-50%.
Keywords: Autosomal dominant; Retinitis pigmentosa.