Dr McMahon received his OD degree at the Illinois College of Optometry and residency in Optometry at the Kansas City Veterans Administration Medical Centre. Dr. McMahon’s principal research interests are the pathobiology, genetics and clinical management of keratoconus, a degenerative disease of the cornea. His multi-centre clinical trials are supported by numerous grants from the National Eye Institute, including the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Corneal Topography Reading Center. Dr. McMahon is a member of the Board of Directors of the American Academy of Optometry and is a Diplomate in the Section on Cornea, Contact Lenses and Refractive Technologies. Dr. McMahon serves on the editorial board for the journals Cornea and Eye and Contact Lens. The National Academies of Practice, an organization of outstanding health care practitioners dedicated to quality healthcare for all, named him a Distinguished Clinical Fellow. Dr. McMahon sees patients at the Illinois Eye and Ear Infirmary and the Millennium Park Eye Centre.
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