Mizuo-phenomenon is seen in -: (A) Fundus albipathicus, (B) Fundus flavimaculatus, (C) Oguchis disease, (D) Choroideremia
Answer is C. Oguchi disease is characterized by a golden-brown fundus with a yellow-gray 'metallic' sheen in the light-adapted state. After complete dark adaptation (3 to 12 hours), the fundus appears normal, and this disappearance of the shiny, yellow, fundus reflex is called the Mizuo-Nakamura phenomenon.