IEEE Open Journal of Engineering in Medicine and Biology

Goal: Retinal prosthesis performance is limited by the variability of elicited phosphenes. The stimulating electrode’s position with respect to retinal ganglion cells (RGCs) affects both perceptual threshold and phosphene shape. We created a modeling framework incorporating patient-specific anatomy and electrode... Read more

Abstract Epiretinal prostheses aim to restore visual perception in the blind through electrical stimulation of surviving retinal ganglion cells (RGCs). While the effects of several waveform parameters (e.g., phase duration) on stimulation efficacy have been described, their relative influence remains unclear.... Read more

James D. Weiland and Mark S. Humayun, University of Southern California, Volume 61, Issue 5, page: 2629-2641 Retinal prostheses have been translated from the laboratory to the clinic over the past two decades. Currently, two devices have regulatory approval for the treatment... Read more