'Sight' to visually-challenged people

'Sight' to visually-challenged people

1. A team of scientists has given 'sight' to people who had completely lost their sense of vision.
2. Scientists from UCLA and Baylor developed a technique to relay visual information from cameras to the brain - by the way of electric signals.
3. The researchers used electricity to stimulate electrodes implanted at the visual cortex in the back of the brain.
4. In a test, the system worked almost perfectly for two blind subjects and four sighted people who had the implants as part of a treatment for epilepsy.
5. Specifically, they were given electric stimulation through the implant and were able to perceive the symbols with an incredible accuracy between 80% to 93% and they even managed to draw the symbols on a screen.

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