1. Department of Ophthalmology; Royal Berkshire Hospital; Reading UK
2. Oxford Eye Hospital; The John Radcliffe Hospital; Oxford UK
3. National Specialist Ophthalmic Pathology Service; Department of Histopathology; Royal Hallamshire Hospital; Sheffield UK
4. Department of Clinical Genetics; Oxford Radcliffe Hospitals NHS Trust; Oxford UK
5. Oxford Centre for Diabetes, Endocrinology and Metabolism; University of Oxford; Oxford UK
6. Oxford NIHR Biomedical Research Centre; Churchill Hospital; Oxford UK