Affiliation: | 1. Department of Optometry and Vision Science, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia;2. School of Optometry and Vision Science, University of Waterloo, Waterloo, Canada;3. Sun Life Financial Movement Disorders Research and Rehabilitation Center, Department of Kinesiology and Physical Education, Faculty of Science, Wilfrid Laurier University, Waterloo, Canada |