Retinal prosthesis
JD Weiland, MS Humayun - IEEE Transactions on Biomedical …, 2014 - ieeexplore.ieee.org
Retinal prosthesis has been translated from the laboratory to the clinic over the past two
decades. Currently, two devices have regulatory approval for the treatment of retinitis …
decades. Currently, two devices have regulatory approval for the treatment of retinitis …
Stimulation strategies for improving the resolution of retinal prostheses
Electrical stimulation using implantable devices with arrays of stimulating electrodes is an
emerging therapy for neurological diseases. The performance of these devices depends …
emerging therapy for neurological diseases. The performance of these devices depends …
Subretinal electronic chips allow blind patients to read letters and combine them to words
E Zrenner, KU Bartz-Schmidt… - … of the Royal …, 2011 - royalsocietypublishing.org
A light-sensitive, externally powered microchip was surgically implanted subretinally near
the macular region of volunteers blind from hereditary retinal dystrophy. The implant …
the macular region of volunteers blind from hereditary retinal dystrophy. The implant …
Electric crosstalk impairs spatial resolution of multi-electrode arrays in retinal implants
Active multi-electrode arrays are used in vision prostheses, including optic nerve cuffs and
cortical and retinal implants for stimulation of neural tissue. For retinal implants, arrays with …
cortical and retinal implants for stimulation of neural tissue. For retinal implants, arrays with …
A review of control strategies in closed-loop neuroprosthetic systems
It has been widely recognized that closed-loop neuroprosthetic systems achieve more
favorable outcomes for users then equivalent open-loop devices. Improved performance of …
favorable outcomes for users then equivalent open-loop devices. Improved performance of …
A complete 256-electrode retinal prosthesis chip
This paper presents a complete 256-electrode retinal prosthesis chip, which is small and
ready for packaging and implantation. It contains 256 separate programmable drivers …
ready for packaging and implantation. It contains 256 separate programmable drivers …
[HTML][HTML] Microstimulation-evoked neural responses in visual cortex are depth dependent
Background Cortical visual prostheses often use penetrating electrode arrays to deliver
microstimulation to the visual cortex. To optimize electrode placement within the cortex, the …
microstimulation to the visual cortex. To optimize electrode placement within the cortex, the …
Tissue response to a chronically implantable wireless intracortical visual prosthesis (Gennaris array)
JV Rosenfeld, YT Wong, E Yan… - Journal of neural …, 2020 - iopscience.iop.org
Objective. Cortical vision prostheses aim to restore visual percepts to those who have lost
sight by delivering electrical stimulation to the visual cortex. These devices need to be …
sight by delivering electrical stimulation to the visual cortex. These devices need to be …
Safety ensuring retinal prosthesis with precise charge balance and low power consumption
Ensuring safe operation of stimulators is the most important issue in neural stimulation.
Safety, in terms of stimulators' electrical performances, can be related mainly to two factors; …
Safety, in terms of stimulators' electrical performances, can be related mainly to two factors; …
Visual cortex responses to suprachoroidal electrical stimulation of the retina: effects of electrode return configuration
R Cicione, MN Shivdasani, JB Fallon… - Journal of neural …, 2012 - iopscience.iop.org
A clinically effective retinal prosthesis must evoke localized phosphenes in a retinotopic
manner in response to stimulation of each of the retinal electrodes, evoke brightness cues …
manner in response to stimulation of each of the retinal electrodes, evoke brightness cues …