1 Department of Neurology (CBC, TK), Friedrich-Baur-Institute, University Hospital of the Ludwig-Maximilians-University, Munich, Germany; German Center for Neurodegenerative Diseases (DZNE) (TK), Munich, Germany; Department of Ophthalmology (BL, CP, GR), University Hospital of the Ludwig-Maximilians-University Munich, Munich, Germany; Department of Ophthalmology (KL), University Hospital and University of Zurich, Zurich, Switzerland; Emory University School of Medicine (NJN), Atlanta, Georgia; and School of Optometry and Vision Sciences (MV), Cardiff University, Cardiff, United Kingdom.