1. Centre for Ophthalmology and Visual Science, University of Western Australia, Nedlands, Western Australia, Australia
2. Lions Eye Institute, Nedlands, Western Australia, Australia
3. Vitreous Retina Macula Consultants of New York, New York, New York, United States
4. Department of Ophthalmology, New York University School of Medicine, New York, New York, United States
5. Department of Ophthalmology, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia