MINA-NEWS #18 - February 2012

A major step towards retinal implants gives hope to AMD sufferers

Leti has contributed to a major step forward in the development of a retinal implant for Age-related Macular Degeneration (AMD), by developing a system that allowed researchers to confirm that electrical retinal stimulation in rats corresponds to natural light stimulation.
Leti’s system uses a 17-microelectrode matrix and a multi-channel pattern generator with pulses of varying width and intensity. Researchers at the Institut des Neurosciences de la Timone and the Institut de la Vision used the system to determine the patterns most likely to restore the vision of patients with retinal implants. In people afflicted by AMD, the light receptors that normally emit the pulses no longer work properly.
Contact: sadok.gharbi@cea.fr

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