From the Cantonal Hospital Baden (A.A.T.); Faculty of Medicine (A.A.T., C.J.B., K.P.W.), University of Zurich; Departments of Neurology (A.A.T., C.J.B., E.B., K.P.W.), Ophthalmology (C.J.B., K.P.W.), and Otorhinolaryngology (C.J.B.), University Hospital Zurich; and Clinical Neuroscience Center (A.A.T., C.J.B., K.P.W.), Zurich, Switzerland.