1. Toronto Eye Care; Toronto Canada
2. School of Optometry; University of Alabama at Birmingham; Birmingham Alabama USA
3. School of Optometry and Vision Science; University of New South Wales; Sydney Australia
4. Cornea and Contact Lens Unit; De Lens Ophthalmics Family Eye and Vision Centre; Abuja Nigeria
5. Casey Eye Institute; Oregon Health and Science University; Portland Oregon USA
6. Centre for Vision Research; Westmead Institute for Medical Research, University of Sydney; Westmead Australia
7. Institute of Ophthalmology; University College London; London UK
8. Centre for Ocular Research and Education (CORE), School of Optometry; University of Waterloo; Waterloo Canada