The world’s first bionic eye implant is a success

british man first bionic eye transplant screen shot 2015 07 22 at 10 40 58 pm
Argus II - Retinal Implant
The bionic (wo)man is extending farther and farther beyond the scope of science fiction and into the realm of reality, especially now that the world’s first bionic eye implant has been successfully performed on an 80-year-old British man suffering from age-related macular degeneration (AMD). The operation, which took place at Manchester Royal Eye Hospital, corrected the long-ailing vision of Ray Flynn, who previously suffered from central vision loss. This meant that while he still had relative use of his peripheral vision, he was unable to “put the numbers in for [his] card when paying in a shop or at the bank,” or “tell the weeds from the flowers” while gardening.

But now, two weeks after last month’s surgery, Flynn is demonstrating that the replacement of his own retina by a retinal prosthesis called Argus II was a success. In clinical trials conducted this week, he was able to determine whether a series of black and white bars on a computer screen were “patterned vertically, horizontally, and diagonally,” something that would have been impossible to do with AMD.

While previous clinical trials had proven Argus II’s effectiveness, Flynn’s case is the first to show that a human subject has been successfully cured of the degenerative disease. As Dr. Paulo Stanga, the lead surgeon on Flynn’s case, told the BBC, “Mr. Flynn’s progress is truly remarkable, he is seeing the outline of people and objects very effectively. I think this could be the beginning of a new era for patients with sight loss.”

The Argus II works by processing visual data that is collected from a tiny camera on glasses a patient wears, that is later converted into electrical pulses and sent wirelessly to electrodes found in the retinal prosthetic. This electric signal then stimulates cells that ultimately send information to the brain about what the patient is “seeing.”

The coolest thing about the implant is that it allows the wearer to “see” with his or her eyes closed — in conducting the experiment with Flynn, doctors ensured that he never opened his eyes so they could guarantee that the visual information he was processing was via the camera on his glasses and the implant, and not his natural eyes. Said Flynn, “It was wonderful to be able to see the bars on the screen with my eyes closed.” While this is by no means a way to restore 20/20 vision, Argus II is allowing patients to reclaim a level of sight that many had previously feared permanently lost.

At the end of the day, says Cathy Yelf, a member of the Macular Society, “This is an exciting result and we are following the progress of these trials with great interest. Macular degeneration can be a devastating condition and very many people are now affected as we live longer. These are early trials but in time this research may lead to a really useful device for people who lose their central vision.”

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