A visual aid that helps the blind to see
Many people forms of progressive retinal degeneration. These are conditions that cause blindness. Researchers from Italy have found a way to help adults retrain their brains to see again.
They have implanted a prosthesis system in seven patients with retinitis pigmentosa, which is one the conditions that lead to blindness. This sends small light pulses to the retina’s remaining cells and stimulates them.
These cells transmit this visual information allowing the person to perceive light patterns, and eventually see again.
The people who underwent the surgery had been blind for 20 years. After implanting the system, there was an increase of signals in the brain. The more time the patients spent training with the implant, the better their performance.
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