The plan is to implant up to 11 small tiles, each loaded with 43 electrodes, into areas of the brain that deal with vision. When these areas are stimulated, people report seeing flashes of light. Lowery believes that each electrode could create a dot of light that is similar to seeing one pixel. In total, the tiles will provide around 500 pixels – enough to create a simple image. Although this resolution is far cruder than the 1 to 2 million pixel image a normal eye can produce, it should restore the basic
Source: Bionic eye will send images direct to the brain to restore sight | New Scientist
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