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Gislin Dagnelie, M.S., Ph.D.

Photo of Dr. Gislin Dagnelie, M.S., Ph.D.
  • Associate Director, Lions Vision Research and Rehabilitation Center
  • Associate Professor of Ophthalmology


Retinitis Pigmentosa, Vision Impairment

Research Interests

Retinitis Pigmentosa; Retinal implants; Low vision rehabilitation


Gislin Dagnelie, Ph.D., is an associate professor of ophthalmology at the Johns Hopkins University School of Medicine and the associate director of the Lions Vision Research and Rehabilitation Center at the Wilmer Eye Institute. His work over the last 20 years has been supported by grants from the National Institutes of Health, National Science Foundation and Foundation Fighting Blindness, among others. Dr. Dagnelie has been the principal investigator for clinical trials of the Optobionics Artificial Silicon Retina (2004-2007) and the Second Sight Argus™ II retinal implant (2007-present). In addition, he studies signals in the retina of retinal prosthesis patients and spearheads an effort to convert standard personal computers into precise tools for visual function measurement in the community and at home.

Dr. Dagnelie is a native of the Netherlands, where he earned a Ph.D. in medical physics at the University of Amsterdam. In 1986, he came to the Wilmer Eye Institute for research in retinitis pigmentosa, an interest he continues to pursue. more


  • Associate Director, Lions Vision Research and Rehabilitation Center
  • Associate Professor of Ophthalmology

Departments / Divisions

Centers & Institutes



  • Ph.D., University of Amsterdam (The Netherlands) (1986)
  • M.S., University of Groningen (The Netherlands) (1977)
  • B.S., University of Groningen (The Netherlands) (1971)

Additional Training

Johns Hopkins University, Baltimore, Maryland, 1988, ophthalmology

Research & Publications


The Dagnelie Lab is focused on assessing and enhancing the functional visual abilities of individuals with ultra-low vision. The lab uses psychophysical experiments to investigate innovative methods for improving visual prostheses.

Contact for Research Inquiries

Lions Vision Research and Rehabilitation Center
600 N. Wolfe Street
Johns Hopkins Wilmer Eye Institute
Baltimore, MD 21287 map
Phone: 410-614-4822
Fax: 410-955-1829

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