Faculty
Professor of Ophthalmology
Donald R. Myers and William E. Dunlap Endowed Chair in Canine Health

Dr. Petersen-Jones earned his vet degree at the Royal Veterinary College, University of London, UK in 1983. After 18 months in general practice, he returned to the Royal Veterinary College to complete a four-year residency in ophthalmology. He was head of the Ophthalmology Service at University of Edinburgh, Scotland, from 1988 to 1994. He was awarded a PhD for his research into hereditary retinal diseases in dogs and been on the faculty at MSU since 1998.
Professor of Ophthalmology

As a clinician-scientist, Dr. Komáromy is particularly interested in studying glaucoma and its disease mechanisms and developing novel, more effective therapies. He received his veterinary degree from the University of Zurich (Switzerland). Following an internship in small animal medicine and surgery at MSU, he performed his PhD graduate work and clinical residency in comparative ophthalmology at the University of Florida. He is a diplomate of the American and European Colleges of Veterinary Ophthalmologists.
Associate Professor

Dr. Leonard is a board-certified ophthalmologist and researcher. His research focuses on corneal healing at the cellular level, with the ultimate goal of finding ways to improve the healing process, as well as ocular surface disease.
Associate Professor of Ophthalmology

Dr. Keiko Miyadera earned her DVM from the University of Tokyo and her PhD from the University of Cambridge in the UK, where she focused on hereditary retinal diseases in dogs. After completing a residency in ophthalmology at the University of Pennsylvania, she served on the faculty there for nine years. Her expansive work includes the clinical characterization of new eye diseases, genome-wide assays to identify disease-causing variants, the investigation of disease mechanisms, and the development of gene therapies. In 2024, Dr. Miyadera is excited to join the faculty at MSU. The Miyadera Lab aims to understand the genetic basis of eye diseases that threaten vision and seeks to establish effective management strategies for hereditary eye diseases.
Associate Professor of Ophthalmology

Dr. Chris Pirie joined the College as an associate professor in April 2017. Born and raised in Toronto, Dr. Pirie was drawn to veterinary ophthalmology for several reasons: a desire to help those who cannot help themselves and a fascination with the uniqueness and complexity of the eye. After earning his veterinary degree from the Ontario Veterinary College at the University of Guelph, he undertook an ocular pathology fellowship at the University of Wisconsin before his residency in ophthalmology at Cummings School of Veterinary Medicine at Tufts University.
Dr. Pirie spent seven years as a Cummings School faculty member and was responsible for managing the ophthalmology service, as well as teaching veterinary students, interns, and residents. During this time period, he developed interests in diagnostic ophthalmic imaging techniques and optics. Additionally, Dr. Pirie is responsible for designing and developing an inexpensive dSLR camera adaptor for conducting ophthalmic imaging. He has published more than 30 articles and currently serves on the ACVO credentialing committee.
Residents
Resident

Dr. Gehrke is an ophthalmology resident for the Department of Small Animal Clinical Sciences.
Veterinary Technicians
Veterinary Technician

Donna Averill is a licensed veterinary technician with experience in the specialty field of veterinary ophthalmology since 1992. In 2001, she received the Veterinary Technician of the Year Award from the College of Veterinary Medicine. In 2003 and 2005, she was given the Clinical Appreciation Award by the Veterinary Technology Program. She lectures as part of the veterinary technology ophthalmology curriculum. She is a knowledgeable individual with great teaching skills, and both our clients and students benefit from her expertise