<prompt> Mizuo phenomenon is seen inOguchi diseaseStargardt diseaseGyrate atrophyRetinitis pigmentosa  <response>: Oguchi disease also called as congenital stationary night blindness Mizuo- nakamura phenomenon: Patient sees better in dark than during day. Genetic: AR, Mutation in rhodopsin kinase gene Fundus is normal in dark but loses its sheen in day light Delayed dark adaptation time Cause: impaired rods activity overstimulation of rod cells 