A "bionic eye" may one day help blind people see again, according to US researchers who have successfully tested the system in rats ... A visual acuity of 20/20 is considered normal, while 20/400 is considered blind. Palanker and his team say their device could provide acuity of 20/80. “With 20/80 vision you can certainly read large forms and live independently,” Palanker says. “It’s a huge step forward."

# posted by Gerry Canavan @ 9:47 AM  |