1. King’s College Hospital NHS Trust, London SE5 9RS, UK
2. UCL Institute of Ophthalmology, London EC1V 9EL, UK
3. NIHR Moorfields Biomedical Research Centre, Moorfields Eye Hospital, London EC1V 2PD, UK
4. Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neuroscience, University of Oxford, Oxford OX3 9DU, UK
5. Oxford Eye Hospital, John Radcliffe Hospital, Oxford University Hospitals, NHS Foundation Trust, Oxford OX3 9DU, UK