Boston Retinal Implant Member Directory
Ralph Jensen, Ph.D.
Associate Director
Center for Innovative Visual, Rehabilitation, Boston VA Medical Center
In-Vitro Retinal Physiology
Dr. Ralph Jensen received his Ph.D. in Physiology (1982) from The Johns Hopkins University. He continued his formal education as a Postdoctoral Fellow in the Department of Physiology and Biophysics at Washington University (1982-1985) and a Research Fellow in the Department of Neurosurgery at Massachusetts General Hospital (1985-1986). In 1986 he accepted at faculty position at the Southern College of Optometry, where he continued his research studies on retinal physiology. He left the Southern College of Optometry in 2002 to join the Center for Innovative Visual Rehabilitation as the Associate Director.
Dr. Jensen performs in-vitro research on animals to determine how the retina responds to different forms of electrical stimuli. During his experiments, Dr. Jensen electrically stimulates the retina with single microelectrodes or microfabricated electrode arrays. Through his research, he hopes to determine the optimal electrical parameters for stimulation of retinal ganglion cells.
Publications:
Responses of rabbit retinal ganglion cells to electrical stimulation with an epiretinal electrode
Thresholds for activation of rabbit retinal ganglion cells with a subretinal electrode
Responses of ganglion cells to repetitive electrical stimulation of the retina
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