1 Department of Ophthalmology, Queen's University, Kingston, Canada; Department of Ophthalmology, Kingston Health Sciences Centre, Hotel Dieu Hospital site, Kingston, Canada; Institute for Clinical Evaluative Sciences, Ontario, Canada. Electronic address: rob.campbell@queensu.ca.
2 Department of Ophthalmology, University of Toronto, Toronto, Canada; Department of Ophthalmology, Kensington Eye Institute, Toronto, Canada.
3 Institute for Clinical Evaluative Sciences, Ontario, Canada; Division of Geriatric Medicine, Queen's University, Kingston, Canada; Division of Geriatric Medicine, Providence Care Hospital, Kingston, Canada.
4 Institute for Clinical Evaluative Sciences, Ontario, Canada; Queen's University, Kingston, Canada.
5 Department of Ophthalmology, Queen's University, Kingston, Canada; Department of Ophthalmology, Kingston Health Sciences Centre, Hotel Dieu Hospital site, Kingston, Canada.
6 Department of Ophthalmology, Western University, London, Canada; Department of Ophthalmology, St. Joseph's Hospital, London, Canada.
7 Institute for Clinical Evaluative Sciences, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Canada; Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, Canada; Department of Medicine, Sinai Health System, Toronto, Canada.