Retinal Prosthesis | SpringerLink
Retinal Prostheses: Current Clinical Results and ..
In the subretinal approach to visual prosthetics, electrodes are placed between the retinal pigment epithelium and the retina, where they stimulate the nonspiking inner retinal neurons.
Retinal Prosthesis posts encouraging results in clinical trial
The Boston Retinal Implant Project, a multidisciplinary team of scientists, engineers, and clinicians at research institutions across the U.S., is developing a retinal prosthesis that transmits information from a camera mounted on eyeglasses to a receiving antenna implanted under the skin around the eye using radiofrequency telemetry—technology similar to radio broadcast. The decoded signal is then delivered to an implanted subretinal electrode array via a cable that penetrates into the eye. The information delivered to the retina by this device is not related to direction of gaze, so to survey a scene a patient must move his head, instead of just his eyes.
FDA Approval for Argus II Retinal Prosthesis System
Fabio Benfenati of the Italian Institute of Technology in Genoa and Guglielmo Lanzani at the institute’s Center for Nanoscience and Technology in Milan are also pursuing the subretinal approach to visual prostheses, developing a device based on organic polymers that could simplify implant fabrication. So far, subretinal light-sensitive implants appear to be a promising approach to restoring sight to the blind.
is a professor in the Department of Ophthalmology and Hansen Experimental Physics Laboratory at Stanford University.
Retinal prosthesis - ResearchGate
To overcome these challenges, my colleagues and I have developed a wireless photovoltaic subretinal prosthesis, powered by pulsed light. Our system includes a pocket computer that processes the images captured by a miniature video camera mounted on video goggles, which project these images into the eye and onto a subretinally implanted photodiode array. Photodiodes in each pixel convert this light into pulsed current to stimulate the nearby inner retinal neurons. This method for delivering the visual information is completely wireless, and it preserves the natural link between ocular movement and image perception.