This week on "TechKnow," we go inside an operating room for the third-ever U.S. surgery to implant the Argus II, a sensor placed directly on the retina that can help people see again.
One bonus to having such a great team of super-smart contributors: Kosta Grammatis once actually designed a prosthetic eye equipped with a camera for a filmmaker.
Learn more on our site, and watch Saturday on aljazeeraamerica.












