A 60-year-old man complained of blurred vision in both his eyes. He denied a headache or pulsatile tinnitus. ##Medical history and ongoing medication## Blurred vision in the left eye had progressed gradually over the past five months.
Blurred vision in the right eye had set in ten days ago. Cardiac transplant six months prior to presentation for ischemic cardiomyopathy, chronic kidney disease secondary to the cardiorenal syndrome. Oral medications: Tacrolimus 3 mg BID, prednisone 7.5 mg PO daily, mycophenolate sodium 360 mg BID, voriconazole 200 mg BID, pantoprazole 40 mg daily, pravastatin 20 mg daily, and bisoprolol 2.5 mg daily.## ##Investigations## Ophthalmological examination: Visual acuity: 20/30 in the right eye (oculus dexter or OD); 20/50 in the left eye (oculus sinister or OS) Left relative afferent pupillary defect Dilated fundus examination: Bilateral optic disc edema that…
