Fig. 1
Color fundus. Shows normal appearance of optic disc and macula. Also pigmentary changes in mid-periphery and discrete vascular (arteries) attenuation. A 56-year-old male started to notice 3 years ago, rapid progressive visual field loss and nyctalopia without any other local or systemic symptoms. There were no signs of ocular inflammation and no history of autoimmune diseases or cancer. Blood tests showed some antiretinal antibodies. Fluorescein angiography (FA) showed areas of leakage. Full-field ERG demonstrated non-detectable rod response in both eyes and preserved response of cones in 7% in both eyes. No gene mutation was found in retinal dystrophy panel. Patient noticed some visual improvement with high doses of immunosuppressive drugs