Dr. Derek MacDonald graduated from the University of Waterloo School of Optometry in 1992, and began full-scope private practice in Waterloo with special interest in ocular and systemic disease. He is a past-President of the Ontario Association of Optometrists and retired Council Member of the College of Optometrists of Ontario, a Fellow of the American Academy of Optometry and Chair of the AAO International Admittance Committee 5B, and a member of the Optometric Glaucoma and Optometric Retina Societies. He co-authored the Canadian Association of Optometrists Clinical Guidelines for both glaucoma and diabetes, and sat on the Clinical Advisory Expert Panel that crafted Glaucoma Quality Statements for Health Quality Ontario. His research, lecturing, and writing interests are primarily focused on glaucoma, retinal vascular disease, and ophthalmic imaging.