1. Division of General Neurology and Ataxia Unit, Department of Neurology Universidade Federal de São Paulo Sao Paulo Brazil
2. Moorfields Eye Hospital NHS Foundation Trust London United Kingdom
3. Institute of Ophthalmology University College London London United Kingdom
4. Department of Ophthalmology Universidade Federal de São Paulo Sao Paulo Brazil
5. Cambridge Centre for Brain Repair and MRC Mitochondrial Biology Unit, Department of Clinical Neurosciences University of Cambridge Cambridge United Kingdom
6. Cambridge Eye Unit, Addenbrooke's Hospital Cambridge University Hospitals Cambridge United Kingdom