Congenital nystagmus--genetic and environmental causes.

A survey of 40 individuals registered with the Canadian National Institute for the Blind (CNIB) as blind from congenital nystagmus revealed that an abnormal single gene was responsible for the disorder in 33 patients. Fifteen of these were due to autosomal recessive conditions while X-linked disorders accounted for another 15 patients. In 3 cases the… CONTINUE READING