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Artificial Vision — The 2nd Bonn Dialogue. The International Symposium on Visual Prosthesis

Retina Implant Foundation

19.09.2009, Bonn

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Light controlled retinal stimulator for large number of electrodes

Meeting Abstract

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  • author Jun Ohta - Nara Institute of Science and Technology, Nara, Japan

Artificial Vision – The 2nd Bonn Dialogue. The International Symposium on Visual Prosthesis. Bonn, 19.-19.09.2009. Düsseldorf: German Medical Science GMS Publishing House; 2009. Doc09ri21

doi: 10.3205/09ri21, urn:nbn:de:0183-09ri211

Published: November 30, 2009

© 2009 Ohta.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.en). You are free: to Share – to copy, distribute and transmit the work, provided the original author and source are credited.

Outline

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We present a retinal stimulator with a light-controlled function for subretinal implantation. The stimulator is based on a multiple-microchip architecture which has previously been developed to realize over 1000 stimulus electrodes by our group. The retinal stimulator can be controlled by the intensity of light through the light-controlled function embedded in each microchip. The fabricated stimulator was implanted in a rabbit eye and stimulated retinal cells. The EEP signals were successfully obtained.