1. Department of Rheumatology, Bristol Royal Hospital for Children, Bristol, UK
2. Department of Ophthalmology Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK
3. MRC Integrative Epidemiology Unit and School of Population Health Sciences, University of Bristol, Bristol, UK
4. Department of Rheumatology Sheffield Children’s NHS Foundation Trust, Sheffield, UK
5. Department of Ophthalmology University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
6. Bristol Medical School: Translational Health Sciences, University of Bristol, Bristol, UK