1. Medical Retina Department, Moorfields Eye Hospital NHS Foundation Trust, London, UK
2. Eye Clinic, Cantonal Hospital of Lucerne, Lucerne, Switzerland
3. Department of Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
4. Academic Unit of Ophthalmology, Institute of Inflammation & Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
5. Health Data Research UK, London, UK
6. NIHR Biomedical Research Centre for Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, UK
7. Medignition Inc, Research Consultants, Zurich, Switzerland
8. Centre for Patient Reported Outcome Research, Institute of Applied Health Research, University of Birmingham, Birmingham, UK