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Optobionics Corp.

Implantable Devices; Artificial Retina. Optobionics is developing an artificial silicon retina that may make use of remaining viable retinal circuitry to transmit visual signals to the brain. The technology is based on microphotodiodes that are implanteed into the eye either arrayed on a small silicon chip, within a biocompatible gel sheet placed in the subretinal space, or injected under the retina mxied with a gelatinous slurry. The microphotodiodes convert light energy to electrical energy.

For people blinded by retinal disease or long-term retinal detachment, a device that would allow them to see light—not necessarily patterns or objects, just light—would be a godsend. Pediatric ophthalmologist Alan Chow hopes to bring them light and more with the "Artificial Silicon Retina," an implantable silicon device he designed with his brother, electrical engineer Vincent Chow.

Their company, Optobionics Corp. , is developing devices based on microphotodiodes (approximately 3mm x .25mm in size) that are...

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