Abstract

Like their affected male relatives, female carriers of the sex-linked inherited form of congenital stationary night blindness are born with one defective X-chromosome; but unlike their relatives, the carriers do not express the night blindness, high myopia, or most other of the clinical symptoms associated with this genetic defect. Recently, Miyake and Kawase (1983) carefully compared the ERG responses of a large number of carriers with normal subjects. As one might expect they found that the female carriers had normal scotopic ERG a-and b-waves. Somewhat unexpectedly, however, Miyake et al found that the amplitude of the oscillatory potentials (OPs) was slightly (but statistically significantly) smaller than that of normal subjects.

© 1988 Optical Society of America