Composite fundus photograph, fluorescein angiography and vertical OCT of the left eye. (a) Composite fundus photograph of the left eye on the day of presentation demonstrating mild vitritis, optic nerve edema with overlying exudates, macular thickening, and multiple track-like chorioretinal scars (arrowheads). Retinal veins show phlebitis with areas of inflammatory exudates (arrows). (b) and (c) Fluorescein angiography of the left eye shows leakage of fluorescein from the optic nerve and the retinal veins. (d) Vertical OCT image of the left eye demonstrates subretinal and intraretinal fluid.