Oguchi Disease 2, also known as oguchi disease-2, is related to pineocytoma and macular dystrophy, dominant cystoid. An important gene associated with Oguchi Disease 2 is GRK1 (G Protein-Coupled Receptor Kinase 1), and among its related pathways/superpathways are Olfactory Signaling Pathway and Visual phototransduction. Related phenotypes are congenital stationary night blindness and mizuo phenomenon