X-linked congenital stationary night blindness
X-linked congenital stationary night blindness (XLCSNB) is a disorder of the retina. People with this condition typically experience night blindness and other vision problems, including loss of sharpness (reduced visual acuity), severe nearsightedness (myopia), nystagmus,and strabismus. Color vision is typically not affected. These vision problems are usually evident at birth, but tend to be stable (stationary) over time. There aretwo major types of XLCSNB: the complete form and the incomplete form. Bothtypes have very similar signs and symptoms. However, everyone with the complete form has night blindness, while not all people with the incomplete form have night blindness. The types are distinguished by their genetic cause.
MONDO:0000425
X-linked disease
is_a
MONDO:0002320
congenital nervous system disorder
is_a
MONDO:0016293
congenital stationary night blindness
is_a
X-linked CSNB
exact
XLCSNB
exact
congenital stationary night blindness, X-linked
exact