1. Department of Ophthalmology, Sydney Hospital and Sydney Eye Hospital, Sydney, New South Wales, Australia
2. Department of Ophthalmology, Belfast Health and Social Care Trust, Belfast, UK
3. Save Sight Institute, Central Clinical School, Discipline of Clinical Ophthalmology and Eye Health, University of Sydney, Sydney, New South Wales, Australia
4. Department of Ophthalmology, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, New South Wales, Australia