1. Moorfields Eye Hospital NHS Foundation Trust, London, United Kingdom
2. Institute of Ophthalmology, University College London, London, United Kingdom
3. Academic Department of Neurosciences, Royal Hallamshire Hospital, Sheffield, United Kingdom
4. Liverpool Centre for Genomic Medicine, Liverpool Women's Hospital, Liverpool, United Kingdom
5. Departments of Neurology and Ophthalmology, Royal Victoria Infirmary, Newcastle upon Tyne, United Kingdom
6. Paediatric Neurosciences Research Group, Royal Hospital for Children, Glasgow, Scotland
7. Department of Neurology, Reference Center for Lysosomal Diseases, Neuro-Genetic and Metabolism Unit, Paris, France
8. Sorbonne University, Paris, France
9. Groupe Hospitalier La Pitié Salpêtrière-Charles Foix, DHU Vision Et Handicaps, Paris, France
10. Université Angers, MitoLab team, UMR CNRS 6015 - INSERM U1083, Angers, France
11. Department of Neurogenetics, The National Hospital for Neurology and Neurosurgery and UCL Institute of Neurology, London, United Kingdom
12. National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS trust, London, United Kingdom
13. NIHR BioResource - Rare Diseases, Cambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom
14. Department of Medical Genetics, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
15. Centre for Neuromuscular Diseases, UCL Queen Square Institute of Neurology and National Hospital for Neurology and Neurosurgery, London, United Kingdom
16. Cambridge Eye Unit, Addenbrooke's Hospital, Cambridge University Hospitals, Cambridge, United Kingdom
17. John van Geest Centre for Brain Repair and MRC Mitochondrial Biology Unit, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom
18. Department of Ophthalmology, University of California, San Francisco, San Francisco, California, United States
19. Great Ormond Street Hospital for Children, London, United Kingdom