Photo of Nelson R. Sabates, M.D.
Nelson R. Sabates, M.D.
Chairman & Professor – Department of Ophthalmology President of the Vision Research Foundation, President and CEO – Sabates Eye Centers, P.C.Department of Ophthalmology

Dr. Nelson Sabates received his medical training at the University of Missouri-Kansas City (UMKC) School of Medicine. After an internship at St. Luke’s Hospital in Kansas City, Missouri, he completed his ophthalmology residency at the Dean McGee Eye Institute, University of Oklahoma School of Medicine, Oklahoma City, Oklahoma. He received his subspecialty training in medical and surgical diseases of the retina and vitreous fellowship at the Massachusetts Eye and Ear Infirmary, Harvard Medical School, and a post-doctoral research fellowship at the Schepens Eye Research Institute in Boston, Massachusetts.

Photo of Peter Koulen, Ph.D.
Peter Koulen, Ph.D.
Departments of Ophthalmology & Biomedical Sciences Work Phone: (816) 404-1824

Professor and Felix and Carmen Sabates Missouri Endowed Chair in Vision Research
Director of Basic Research, Vision Research Center
Department of Ophthalmology

Department of Biomedical Sciences

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Research Interest

Dr. Koulen is a Professor of Ophthalmology and Biomedical Sciences and the Felix and Carmen Sabates Missouri Endowed Chair in Vision Research at the UMKC School of Medicine. He trained at the Max-Planck-Institute for Brain Research, Yale University and the Marine Biological Laboratory. His research focuses on basic research on and therapy development for chronic diseases of the eye and brain. He is an internationally recognized expert in biophysics, biochemistry and physiology of nerve cells and his research has been funded continually since 2002 by national and international foundations and agencies including the NIH’s National Eye Institute, National Institute on Aging, National Cancer Institute, National Center for Research Resources, National Institute of Diabetes and Digestive and Kidney Diseases, and the U.S. DOD among others. As principal or co-investigator for over $20 million in extramural grant funding for research studies, Dr. Koulen’s research program has fundamental relevance to basic science, translational research and therapy development as evidenced by over 120 peer-reviewed publications in scientific journals, and 10 book chapters. Dr. Koulen has over 25 years of experience in the fields of neuroscience and eye research, drug development, translational research, biological sciences, biostatistics, and routinely interprets complex data sets with distinct public health significance. Dr. Koulen serves as reviewer for more than 50 professional scientific journals, serves on over 15 editorial boards and is editor in chief of two scientific journals. He is a review panel member for several national and international funding agencies including the National Science Foundation, the National Institutes of Health, the U.S. Department of Defense and other national and international government agencies and research foundations. The University of Missouri – Kansas City Board of Trustees recognized Dr. Koulen with the N.T. Veatch Award for Distinguished Research and Creativity. Through this Faculty Award, UMKC and the UMKC Trustees are recognizing the very best faculties, who have distinguished themselves through scholarship and creativity.

Vision research

Degeneration or acute damage of nerve cells in the retina is a major cause of visual loss and blindness in the United States and worldwide. As diseases such as glaucoma, macular degeneration and diabetic retinopathy affect significant and increasing portions of the U.S. population, including minorities affected by disparities in health care delivery, determining causes, mechanisms of action and subsequently potential treatment strategies will contribute to improving health care, health and performance requiring visual tasks.

The Vision Research Center was founded as and is a well-established collaboration of several UMKC schools and Kansas City Medical Centers and thus offers an unprecedented interdisciplinary synergy with a unified goal: to better diagnose, prevent, and treat eye disease and vision disorders through translational research in order to make a difference in the lives of tens of millions of people worldwide. To this end, the center conducts federally and industry funded basic, translational and clinical research to develop new medical therapies and offers patient care in all subspecialties of ophthalmology. The center’s nationally recognized excellence in research, patient care and medical education contribute to UMKC’s strengths in the life sciences. Objectives of the Vision Research Center are to:

  • Provide a direct avenue for basic and translational research in eye and related diseases,
  • Transfer basic science findings seamlessly into practical use with patients through translational research,
  • Develop new therapy approaches urgently needed by physicians in the US and worldwide,
  • Provide educational excellence,
  • Ensure patients receive the most advanced medical treatments available,
  • Become a national center of excellence for eye research.

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Residency Program

Photo of Matthew C. Sniegowski, M.D.
Matthew C. Sniegowski, M.D.
Residency Program Director Department of Ophthalmology


Photo of Katie J. Macaluso, M.D.
Katie J. Macaluso, M.D.
Associate Program Director Department of Ophthalmology

Refractive Surgery

Faculty Listing

CottleL CasssellL DesaiL
Ramona Baumfalk, O.D. John Cottle, O.D. Michael A. Cassell, M.D. Komal Desai, M.D.
KrishnaL LyonL
Sean Gratton, M.D. Rohit Krishna, M.D Paul Kusy, O.D. David Lyon, M.D., FACS
Macaluso5x7_reSml PouloseA RupaniL
Katie Macaluso, M.D. Kevin Pikey, D.O.  Abraham Poulose, M.D., FACS Mahendra Rupani, M.D.
FelixSabatesL sabates-N WallineL
Felix Sabates, M.D., FACS Nelson Sabates, M.D., FACS Matthew Sniegowski, M.D.  Timothy Walline, M.D.


Vice-Chairman and Director of Clinics
David B. Lyon, M.D. FACSComprehensive Ophthalmology
Komal K. Desai, M.D.
Mahendra K. Rupani, M.D.
Timothy A. Walline, M.DCornea/Uveitis
Katie Macaluso, M.D.

Rohit Krishna, M.D.
Kevin P. Pikey, D.O.

Sean Gratton, M.D.

Ocular Oncology 
Komal K. Desai, M.D

Ocular Pathology
Mahendra K. Rupani, M.D.

Oculoplastics and Orbital Surgery
David B. Lyon, M.D.
Matthew C. Sniegowski, M.D.

Pediatric Ophthalmology
Scott E. Olitsky, M.D., Director
– – – –
Michelle Ariss, M.D.
Scott Atkinson, M.D.
Emily Broxterman, M.D.
Denise Hug, M.D.
Timothy Hug, O.D.
Marla Kennard, O.D.
Amy Langford, O.D.
Justin Marsh, M.D,
Laura S. Plummer, M.D.
Erin Stahl, M.D.
Amy Sullivan, O.D.

Refractive Surgery
Katie Macaluso, M.D.
Timothy A. Walline, M.D.Retina and Vitreous
Michael A. Cassell, M.D.
Abraham K. Poulose, M.D.
Felix N. Sabates, M.D.
Nelson R. Sabates, M.D.Contact Lens and Low Vision
Ramona Baumfalk, O.D.
Paul Kusy, O.D.

Vision Research Center

Nelson R. Sabates, M.D., Director
Peter Koulen, Ph.D., Director of Basic Research, Endowed Chair
– – – –
Kun Cheng, Ph.D.
R. Scott Duncan, Ph.D.
Simon H. Friedman, Ph.D.
William G. Gutheil, Ph.D.
Thomas P. Johnston, Ph.D.
Karl Kador, Ph.D.
Chi H. Lee, Ph.D.
Ashim K. Mitra, Ph.D.
Mridul Mukherji, M.D
Phil Dhananjay Pal, Ph.D.
Ting Xie, Ph.D.
Bi-Botti Youan, Ph.D.