Honeycomb-shaped electro-neural interface enables cellular-scale pixels in subretinal prosthesis
نویسندگان
چکیده
منابع مشابه
In-vivo Performance of Photovoltaic Subretinal Prosthesis
We have developed a photovoltaic retinal prosthesis, in which camera-captured images are projected onto the retina using pulsed near-IR light. Each pixel in the subretinal implant directly converts pulsed light into local electric current to stimulate the nearby inner retinal neurons. 30 m-thick implants with pixel sizes of 280, 140 and 70 μm were successfully implanted in the subretinal space...
متن کاملImplantation of Modular Photovoltaic Subretinal Prosthesis.
BACKGROUND AND OBJECTIVE Establish the surgical procedure for subretinal implantation of multiple photovoltaic arrays for the restoration of sight. MATERIALS AND METHODS Multiple silicon photovoltaic arrays of 1 mm in diameter and 30 µm in thickness were implanted subretinally via single retinotomy in rabbits. Ophthalmoscopic imaging and optical coherence tomography (OCT) were used to validat...
متن کاملThe subretinal microphotodiode array retinal prosthesis.
This article is also accessible online at: http://BioMedNet.com/karger To the Editor: We are concerned to read the recent article by Zrenner et al. [1]. While developing an artificial retina is a laudable goal, the publication of this article raises serious questions. The fundamental concern that we have is that the article creates the overall impression that the concept of placing a semiconduc...
متن کاملA neural interface for a cortical vision prosthesis
The development of a cortically based vision prosthesis has been hampered by a lack of basic experiments on phosphene psychophysics. This basic research has been hampered by the lack of a means to safely stimulate large numbers of cortical neurons. Recently, a number of laboratories have developed arrays of silicon microelectrodes that could enable such basic studies on phosphene psychophysics....
متن کاملContrast sensitivity with a subretinal prosthesis and implications
Purpose: To evaluate the contrast sensitivity of a degenerate retina stimulated by a photovoltaic 12 subretinal prosthesis, and assess the impact of low contrast sensitivity on transmission of visual 13 information. Methods: We measure ex-vivo the full-field contrast sensitivity of healthy rat retina stimulated with 15 white light, and the contrast sensitivity of degenerate rat retina stimulate...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2019
ISSN: 2045-2322
DOI: 10.1038/s41598-019-47082-y