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Six previously blind patients detect light, motion, identify objects with retinal prostheses

Both AMD and RP destroy vision by annihilating the retinal cells that allow light to be translated into recognizable images.

Second Sight's intraocular retinal prosthesis is taking the first step to replacing those cells with its device, a 4-by-4 grid of platinum electrodes embedded in silicone rubber. The electrodes are wirelessly stimulated through an external controller hooked up to a head-mounted video camera.

This study is being conducted under a Food and Drug Administration Investigational Device Exemption (IDE), and is funded by Second Sight Medical Products, Inc., Research to Prevent Blindness, and the Fletcher Jones Foundation.

M.S. Humayun, R. Freda, I. Fine, A. Roy, G. Fujii, R.J. Greenberg, J. Little, B. Mech, J.D. Weiland, E. de Juan, Jr., "Implanted Intraocular Retinal Prosthesis in Six Blind Subjects," ARVO 2005, Retinal Prosthesis I, Monday, May 2, 12:15 p.m.


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Source:University of Southern California


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