Walter Wittich is an associate professor at the School of Optometry at the University of Montreal, in Quebec, Canada. His research focuses on the rehabilitation of older adults with combined vision and hearing loss. Following his Master’s in Psychology (Concordia University) and PhD in Visual Neuroscience (McGill University), he completed a postdoctoral fellowship in audiology at the University of Montreal. Coming from a background in age-related vision loss, he now conducts research in dual sensory impairment and acquired deaf-blindness. His research domains include basic sensory science, as well as medical, psychosocial, and rehabilitation approaches to sensory loss, where he has published over 130 peer-reviewed articles. He is the inaugural chair of the Deafblind International Research Network, is a fellow of the American Academy of Optometry and is Quebec’s first Certified Low Vision Therapist.