1. Lawson Health Research Institute, Aging, Rehabilitation, and Geriatric Care Research Centre, Parkwood Hospital, 801 Commissioners Road East, Room B-3016, London, ON, Canada, N6C 5J1J.
2. Senior scientist, Lawson Health Research Institute, Aging, Rehabilitation, and Geriatric Care Research Centre;
3. Centre for Sight Enhancement, School of Optometry, University of Waterloo, Waterloo, ON, Canada N2L 3G1;
4. Research Support Unit, Bloorview Research Institute, Bloorview Kids Rehab, 150 Kilgour Road, Toronto, ON, Canada M4G1R8, and assistant professor, Department of Occupational Therapy, University of Toronto, Toronto, Canada;
5. Research Department, Canadian National Institute for the Blind (CNIB), 1929 Bayview Avenue, Toronto, ON Canada M4G 3E8;
6. National Communications Department, CNIB;