1. From the Department of Ophthalmology, Prince of Wales Hospital, The University of New South Wales, Sydney, New South Wales, Australia; and the
2. From the Department of Ophthalmology, Prince of Wales Hospital, The University of New South Wales, Sydney, New South Wales, Australia; and the2Cooperative Research Centre for Eye Research and Technology and Cornea and Contact Lens Research Unit, School of
3. Cooperative Research Centre for Eye Research and Technology and Cornea and Contact Lens Research Unit, School of Optometry, The University of New South Wales, Sydney, New South Wales, Australia.