1. Northern Clinical School, Royal North Shore Hospital University of Sydney St Leonards New South Wales Australia
2. Department of Ophthalmology, Westmead Hospital University of Sydney Westmead New South Wales Australia
3. Rural Clinical School University of New South Wales Kensington New South Wales Australia
4. Department of Ophthalmology Port Macquarie Base Hospital Port Macquarie New South Wales Australia
5. Westmead Millennium Institute for Medical Research Westmead New South Wales Australia
6. Pam McLean Centre University of Sydney St Leonards New South Wales Australia