Clinical Reasoning: A 69-year-old man with rare complex visual symptoms.

Vicino A From the Department of Clinical Neurosciences, Neurology Service, Lausanne University Hospital and University of Lausanne, Switzerland. alex.vicino@chuv.ch.
Rouaud O From the Department of Clinical Neurosciences, Neurology Service, Lausanne University Hospital and University of Lausanne, Switzerland.
Du Pasquier R From the Department of Clinical Neurosciences, Neurology Service, Lausanne University Hospital and University of Lausanne, Switzerland.
Strambo D From the Department of Clinical Neurosciences, Neurology Service, Lausanne University Hospital and University of Lausanne, Switzerland.