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Image: The retinal prosthetic system illustrated here, consists of an extra-ocular unit and an intra-ocular unit. The first is mounted on a pair of glasses and is responsible for collecting the image by means of a video camera and then transmitting an encoded digitized image to the intra-ocular unit. The second is composed of a receiving telemetry system, a stimulation current driver, and an electrode array to stimulate retinal cells, thus imparting vision perception.<BR> <BR> This work was supported by National Science Foundation grants BES 98-10914 and BES 98-08040. This research was the foundation for the new NSF-supported Engineering Research Center for Biomimetic Microelectronic Systems (BMES), headquartered at the University of Sounthern California. This center will bring physicians, biologists, and engineers together to develop microelectronic systems that interact with living, human tissues. The resulting technology will enable implantable/portable devices that can treat presently incurable diseases such as blindness, loss of neuromuscular control, paralysis, and the loss of cognitive function. Thumbnail

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