In the operating room of the Keck School of Medicine at the University of Southern California, the third surgically implanted innovative device in the United States was used to restore vision. This device was called Argus. "This device does not work for all types of blindness," Dr. Mark said. "You need to have at least 10% of your visual nerve intact because this device requires the optic nerve to send the signal to the brain."
Argus is implanted directly in the eye to help patients with degenerative eye diseases to see the shape, contours and partial images of things. The device contains 60 electrodes, which are surgically sutured behind the eye muscles during surgery, leaving the device completely on the right part of the retina. “Imagine a Band-Aid, a very complex Band-Aid,†explains Dr. Mark. "The device is located on the top of the retina, allowing us to stimulate the neurons." After a week of treatment, the patient is equipped with a pair of glasses with a miniature camera fixed in front.
It may take several weeks before the patient can see the outline of the blurred image because the visual cortex of the brain has not been used for many years and it needs to re-adapt to perception. “In some ways, learning to use this device is like learning a foreign language. There are millions of people around the world who suffer from eye diseases but have enough optic nerves. We can put this device in their eyes. It's very exciting to do this."
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