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Peter Louis Gehlbach, M.D., Ph.D.

Headshot of Peter Louis Gehlbach
  • J. Willard Marriott, Jr. Professor of Ophthalmology
  • Professor of Ophthalmology


Central Serous Chorioretinopathy, Diabetic Retinopathy, Epiretinal Membranes, Macular Degeneration, Macular Disorders, Macular Holes, Macular Puckers, Ocular Trauma, Ophthalmology, Recurrent Respiratory Papillomatosis, Retinal Detachment, Retinal Specialist, Retinal Surgery, Retinal Vascular Disease, Retinal Vein Occlusion, Retinal Vessel Occlusion, Surgical and Medical Diseases of the Retina, Vitreoretinal Diseases and Surgery Service more

Research Interests

Angiogenesis; Gene Therapy; Diabetic Retinopathy; Macular Degeneration; Microsurgical Instrument Development; Novel surgical tool development; Robotic Surgery more

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The Johns Hopkins Hospital

Appointment Phone: 410-955-3518
600 N. Wolfe Street
Wilmer Eye Institute
Baltimore, MD 21287 map


Peter L. Gehlbach, M.D., Ph.D. is the J. Willard Marriott, Jr. Professor of Ophthalmology with joint appointment in the Department of Electrical and Computer Engineering, The Whiting School of Engineering. A member of the Wilmer faculty since 2000, he was recruited by a national search to become the inaugural Maumenee Scholar at Johns Hopkins University School of Medicine. 

His clinical practice is composed of international, national, and regional patient populations with the most complex retinal disease. An expert vitreoretinal surgeon, Dr. Gehlbach has been a leader in performing and teaching complex surgical cases that require coordination with multiple ophthalmological specialists. His research interests include cutting-edge surgical approaches to patients with retinal disease and the development of novel surgical tools and approaches to retinal microsurgery. 

Dr. Gehlbach’s work has been supported by multiple NIH grants and prestigious foundations with research published in numerous peer-reviewed journals and presented at ophthalmology conferences around the world. The founding director of the former Wilmer Gene Therapy Vector Center, he has served as the director of the Wilmer Echography Center as well as the Retina Fellowship Training Program at Johns Hopkins. He holds multiple patents in both the U.S. and abroad. 

Dr. Gehlbach received his B.A. and M.D. degrees from the University of Vermont, and his Ph.D. in cell and integrative physiology from the University of Minnesota. He completed an internship and residency training in general surgery at the University of Health Sciences, Chicago Medical School. His ophthalmology residency was at Washington University in St. Louis, where he also completed a fellowship in protein chemistry. He completed a medical and surgical retina fellowship at the Casey Eye Institute in Portland. more


  • J. Willard Marriott, Jr. Professor of Ophthalmology
  • Professor of Ophthalmology

Departments / Divisions

Centers & Institutes



  • MD; University of Vermont College of Medicine (1986)


  • Surgery; Rosalind Franklin University of Medicine and Science Chicago SOM (1989)
  • Ophthalmology; Washington University School of Medicine in St Louis (1998)


  • Retina; Casey Eye Institute/Oregon Health Sciences Univ (2000)
  • Ophthalmology; Regions Hospital (1994)
  • Ophthalmology; Washington University School of Medicine in St Louis (1995)

Board Certifications

  • American Board of Ophthalmology (Ophthalmology) (2000)

Research & Publications

Clinical Trial Keywords

Macular Degeneration; Diabetes

Activities & Honors


  • Nomination for Excellence in Service and Professionalism Award, Johns Hopkins Medicine Clinical Awards
  • Grant Funding, Fight for Sight
  • Career Development Award, Research to Prevent Blindness
  • Knights Templar Eye Foundation
  • Inaugural Maumenee Clinician Scientist Scholar, Johns Hopkins University
  • Ophthalmology Fellowship, Heed Ophthalmic Foundation Fellowship
  • Vitreoretinal Clinical Fellowship, merican Ophthalmological Society – Knapp Fellowship

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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