Definition:A retinal degeneration characterized by the gradual deterioration of the photoreceptors or the retinal pigment epithelium of the retina leading to progressive sight loss.
Definition:A Leber congenital amaurosis that is characterized by night blindness and thick unlaminated retinas and has_material_basis_in mutation in the CRB1 gene on chromosome 1q31-q32.
Definition:An eye disease characterized by the presence of bone corpuscle pigmentation in a paravenous distribution in the ocular fundus that has_material_basis_in heterozygous mutation in the CRB1 gene on chromosome 1q31.3.