Hereditary vitreoretinal degeneration and night blindness

A genetic disorder consisting of hyaloidoretinal degeneration associated with congenital night blindness, but without myopia, was found in two consecutive generations of a consanguineous Jewish-Iraqi family. Vitreous changes without the other anomalies were detected in four female relatives of the patients. The segregation of affected members in the family is consistent with several modes of inheritance. If the syndrome is X-linked, its locus is not close to the loci of Xg and of G6PD.