A survey of hereditary aspects of pigmentary retinal dystrophies
- 1 August 1989
- journal article
- research article
- Published by Wiley in Australian and New Zealand Journal of Ophthalmology
- Vol. 17 (3) , 247-256
- https://doi.org/10.1111/j.1442-9071.1989.tb00528.x
Abstract
A study of 707 cases of retinitis pigmentosa and choroideraemia presenting over 12 years were classified according to their modes of inheritance‐439 autosomal recessive (62%), 193 autosomal dominant (27%), 75 X‐linked (10.7%). The patients with autosomal recessive transmission included 58 Usher syndrome, 12 Laurence‐Moon‐Bardet‐Biedl syndrome and 33 Leber's congenital amaurosis. Another 37 had an early onset with macular degeneration and 31 were of late onset with pericentral dystrophy. Forty two were offspring of consanguineous parents. Of 193 individuals (78 families) with autosomal dominant inheritance, 20% had night blindness from early childhood. With X‐linked transmission, 33 males and 31 female carriers comprised the retinitis pigmentosa group and eight males and three carrier females, choroideraemia. Almost all this X‐linked group were of British ancestry. Of patients originating from the Mediterranean area, 94% had autosomal recessive disease.Keywords
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