1 School of Medicine, University of Manchester, Manchester, UK.
2 Department of Ophthalmology and Department of Epidemiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
3 Academic Unit of Ophthalmology, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK. [email protected].
4 Birmingham and Midland Eye Centre, Sandwell and West Birmingham NHS Trust, Birmingham, UK. [email protected].
5 Academic Ophthalmology, School of Medicine, University of Nottingham, Nottingham, UK. [email protected].
6 Singapore Eye Research Institute, Singapore, Singapore. [email protected].