1. School of Optometry and Vision Science, and New Zealand National Eye Centre, University of Auckland, Auckland, New Zealand
2. l.hamm@auckland.ac.nz
3. Optometry and Vision Science, University of Canberra, Canberra, Australia
4. nicola.anstice@canberra.edu.au
5. UCL Institute of Ophthalmology, University College London, London, UK
6. s.dakin@auckland.ac.nz