1. Eye Associates, Sydney, New South Wales,
2. Flinders Medical Centre, Adelaide, South Australia,
3. Riverina Eye Care Centre, Wagga Wagga, New South Wales,
4. Save Sight Institute, Department of Ophthalmology, University of Sydney, New South Wales,
5. Glaucoma Services, Sydney Eye Hospital, New South Wales, and
6. Australian School of Advanced Medicine, Macquarie University, Sydney, New South Wales, Australia