A 40-year-old man presented with a 1-year history of decreased vision and the sensation of tunnel vision, which accompanied cognitive decline for the past 2 years. Patient History The patient has a history of renal cell carcinoma and has undergone left nephrectomy 1 year prior with no recurrence. Prior to the presentation, his evaluation included brain magnetic resonance imaging and neurologic evaluation with unremarkable results, and he is scheduled to undergo neuropsychological testing. Physical examination Visual acuity is counting fingers OD, and 20/100OS.
Motility and intraocular pressures are normal. There is a right afferent pupillary defect. Examination of the right eye revealed rubeosis iridis, a clear lens, neovascularization of the optic disc, retinal vasculitis, venous sheathing, and a dusky-appearing peripheral retina. The left eye has a clear lens and a normal fundus on…