Author information:
(1)IRCCS Institute of Neurological Sciences of Bologna (VC, MC, CLM), Bellaria 
Hospital, Bologna, Italy; Unit of Neurology (VC, CLM), Department of Biomedical 
and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy; 
Department of Neurology (IFdC), Erasmus Medical Center, Rotterdam, the 
Netherlands; Neuro-Ophthalmology Unit (AK), University of Lausanne, Jules Gonin 
Eye Hospital, Lausanne, Switzerland; Department of Neurology (TK), 
Friedreich-Baur-Institute, Ludwing-Maximilians-University, Munich, Germany; 
Munich Cluster for Systems Neurology (SyNergy) (TK), Munich, Germany; German 
Center for Neurodegenerative Diseases (DZNE) (TK), Munich, Germany; Eye Center 
(WAL), Medical Center, Faculty of Medicine, University of Freiburg, Breisgau, 
Germany; Departments of Ophthalmology, Neurology and Neurological Surgery (NJN), 
Emory University School of Medicine, Atlanta, Georgia; Department of 
Ophthalmology (CO); Referral Center for Rare Diseases OPHTARA, Hôpital Européen 
Georges Pompidou, Assistance Publique-Hôpitaux de Paris, Paris, France; 
Department of Ophthalmology (JWRP), University Medical Center Groningen, 
University of Groningen, Groningen, the Netherlands; Doheny Eye Institute (AAS), 
Los Angeles, California; Department of Ophthalmology (AAS), David Geffen School 
of Medicine at UCLA, Los Angeles, California; Department of Neuro-ophthalmology 
(JvE), The Rotterdam Eye Hospital, Rotterdam, the Netherlands; Rotterdam 
Ophthalmic Institute (ROI) (JvE), Rotterdam, the Netherlands; Fondation 
Ophtalmologique Adolphe de Rothschild (CV-C), Paris, France; School of Optometry 
and Vision Sciences (MV), Cardiff University, and Cardiff Eye Clinic, University 
Hospital of Wales, Cardiff, United Kingdom; Wellcome Trust Center for 
Mitochondrial Research (PY-W-M), Institute of Genetic Medicine, Newcastle 
University, Newcastle Upon Tyne, United Kingdom; Newcastle Eye Center (PY-W-M), 
Royal Victoria Infirmary, Newcastle Upon Tyne, United Kingdom; NIHR Biomedical 
Research Center at Moorfields Eye Hospital and UCL Institute of Ophthalmology 
(PY-W-M), London, United Kingdom; Department of Clinical Neurosciences (PY-W-M), 
School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom; 
Department of Ophthalmology (PB), San Raffaele Scientific Institute, Milan, 
Italy; and Studio Oculistico d'Azeglio (PB), Bologna, Italy.