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Thursday, July 20, 2017
EPL- INFORMATION FOR YOUR BUILDING SOUL
BIONIC VISION
In retinitis pigmentosa, the light-sensitive cells of the retina (photoreceptors) degenerate but the retinal neurons that transmit information to the brain remain.
The bionic eye electrically stimulates these surviving retinal cells to provide a sense of vision for people with degenerative eye diseases. The electrode array implanted in the retina delivers electrical stimuli in the form of current pulses that activate nearby cells. This activity is transmitted to the visual areas of the brain (visual cortex) and elicits a perception of a localised flash of light (termed a phosphene).
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