1. Department of Brain Repair and Rehabilitation, Moorfields Eye Hospital NHS Foundation Trust, UCL, London, UK
2. Queen Square MS Centre, Department of Neuroinflammation, UCL Institute of Neurology, Faculty of Brain Sciences, University College London, London, UK
3. Department of Neurology, Amsterdam University Medical Center, Amsterdam, Netherlands
4. Biomedical Research Centre, National Institute for Health Research (NIHR), University College London Hospitals (UCLH), London, UK
5. Department of Brain Repair and Rehabilitation, University College London, London, UK
6. Dutch Expertise Centre for Neuro-Ophthalmology, MS Centre, Departments of Neurology & Ophthalmology, Amsterdam UMC, Amsterdam, The Netherlands