Any Oguchi disease in which the cause of the disease is a mutation in the GRK1 gene. The disease is Oguchi disease-2 (MONDO_0013259, a Monarch Disease Ontology term). Also known as: CSNBO2, GRK1 Oguchi disease, Oguchi disease caused by mutation in GRK1, Oguchi disease type 2, congenital stationary night blindness Oguchi type 2.