Mondo Description Any retinitis pigmentosa in which the cause of the disease is a mutation in the NRL gene.

Uniprot Description A retinopathy characterized by night blindness since early childhood, consistent with a severe reduction in rod function. Color vision is normal although there is a relatively enhanced function of short-wavelength-sensitive cones in the macula. Signs of retinal degeneration and clusters of clumped pigment deposits in the peripheral fundus at the level of the retinal pigment epithelium are present.