Peter J. McDonnell, MD

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1800 Orleans St
Baltimore, MD 21287
Peter J. McDonnell, M.D. is the Alan and Marlene Norton Director of the Wilmer Eye Institute and the William Holland Wilmer Professor of Ophthalmology at the Johns Hopkins University School of Medicine. An ophthalmologist and specialist in corneal disease and surgery, Dr. McDonnell is an international leader in corneal transplantation, laser refractive surgery and the treatment of dry eye. Dr. McDonnell received his bachelor’s degree in chemistry from Dartmouth College. A 1982 graduate of the Johns Hopkins University School of Medicine, Dr. McDonnell completed a residency in ophthalmology at the Wilmer Institute, followed by a fellowship in Cornea and External Diseases at the Doheny Eye Institute of the University of Southern California. He returned to Johns Hopkins to be Assistant Chief of Service at the Wilmer Institute, before joining the full-time faculty at the University of Southern California, where he advanced to the rank of professor in 1994. In 1999, he was named the Irving H. Leopold Professor and Chair of the Department of Ophthalmology at the University of California-Irvine. In 2003, he returned to Johns Hopkins University where he leads the Wilmer Eye Institute as the sixth William Holland Wilmer Professor and Director. The Wilmer Institute is the largest ophthalmology department in the country, with over 130 full-time faculty, and it receives the most research funding. It includes the only designated eye trauma center in the State of Maryland, and last year provided eye care for patients from throughout Maryland, from all 50 states and from 73 foreign countries. Dr. McDonnell’s research interests include dry eye disease, ocular infection and gene therapy to control corneal wound healing and inflammation. He is the recipient of research grants from the National Eye Institute, Research to Prevent Blindness, and other funding agencies. He has published over 250 scientific articles and holds four patents. The American Academy of Ophthalmology honored him with the Honor Award in 1991 and the Senior Achievement Award in 2001. In 2003, he received the Alcon Research Institute Award. A member of many professional ophthalmology and medical societies, Dr. McDonnell has served on the editorial boards of six ophthalmology journals and is currently Medical Editor of Ophthalmology Times. In 2013, Dr. McDonnell was elected president of the boards of directors of NAEVR/AEVR (the National Alliance for Eye and Vision Research and the Alliance for Eye and Vision Research). AEVR is a nonprofit educational foundation, the primary purpose of which is to educate Congress and the public about the value of eye and vision research. NAEVR is a nonprofit affiliate of AEVR and comprises a coalition of 55 professional, consumer and industry organizations involved in eye and vision research.
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Dr. Andrés Matoso, MD, is a Professor of Pathology, Urology, and Oncology at Johns Hopkins University School of Medicine and currently serves as Director of the Urologic Pathology Division and the Genitourinary Pathology Fellowship Program. He earned his medical degree from the University of Buenos Aires in 2002, followed by clinical training in urology at Hospital Militar Central in Buenos Aires. After moving to the United States, he completed a postdoctoral fellowship in cancer biology at Cornell University, where he investigated mechanisms of tumor biology and progression. Dr. Matoso subsequently pursued residency training in Anatomic and Clinical Pathology at Brown University, where he also completed a fellowship in gastrointestinal and liver pathology. He further specialized in urologic pathology through fellowship training at Johns Hopkins Hospital, before joining the Johns Hopkins faculty in 2017. Since then, he has become an integral leader of the Urologic Pathology Consult Service, which reviews more than 5,000 cases annually from national and international institutions, making it one of the largest such services in the world. In this role, he provides expert diagnostic consultation on highly complex and rare cases, and he is actively engaged in mentoring residents and fellows through advanced subspecialty training. Dr. Matoso’s research program focuses on the molecular and morphologic underpinnings of urologic malignancies, with particular emphasis on the genetic alterations associated with bladder cancer development and progression, refinements in prostate cancer grading, and the characterization of uncommon and diagnostically challenging urologic tumors. His translational research bridges molecular diagnostics and histopathology, contributing to improved classification, prognostication, and therapeutic stratification in genitourinary cancers. He has published extensively in the field, authoring more than 170 peer-reviewed scientific articles, seven book chapters—including authoritative contributions to the World Health Organization (WHO) classification of urologic and pediatric tumors—and a widely used textbook, Survival Guide to Prostate Pathology. His scholarly work has been recognized with several awards, including the prestigious Stowell-Orbison Award from the United States and Canadian Academy of Pathology. Beyond his research and clinical practice, Dr. Matoso is an internationally sought-after speaker and educator, lecturing widely at national and international scientific meetings, workshops, and academic institutions.
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