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Implant Stimulates Sight

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CAMBRIDGE, Mass., Sept, 23, 2009 – Inspired by the success of cochlear implants that can restore hearing to some deaf people, researchers at MIT are developing a retinal implant that could one day help blind people regain a useful level of vision. The eye implant is designed for people who have lost their vision from retinitis pigmentosa or age-related macular degeneration, two of the leading causes of blindness. The retinal prosthesis would take over the function of lost retinal cells by electrically stimulating the nerve cells that normally carry visual input from the retina to the brain. A model of the retinal...Read full article

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    Published: September 2009
    Glossary
    chip
    1. A localized fracture at the end of a cleaved optical fiber or on a glass surface. 2. An integrated circuit.
    eye
    The organ of vision or light sensitivity.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    retina
    1. The photosensitive membrane on the inside of the human eye. 2. A scanning mechanism in optical character generation.
    vision
    The processes in which luminous energy incident on the eye is perceived and evaluated.
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