A chip, roughly the size of a grain of salt, was surgically inserted under the retina to convert light patterns into electrical pulses the brain can interpret.
In a study led by Science Corporation, the chip was implanted as replacement retina in 38 participants who were legally blind, with an average vision of 20/450, compared to the normal 20/20.
Following an adjustment period of a few weeks, participants were able to read, play card and tackle crossword puzzles, all activities that require normal vision.
The trial represents an enormous turning point for the field and Science Corporation is convinced to bring this technology to market over the next few years.
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