   Believe it or not, the Argus II is hardly the most advanced
bionic eye on the market. Once you venture into the realm of the
experimental, places the FDA simply does not go, you'll find a
sensational spectrum of inventions that are helping people see.
It's, well, eye-opening. One device that's being tested in the
United Kingdom is a microchip that you actually implant in the
eye to stimulate the optical nerve. It works works like a cell
phone camera except instead of sending the visual information to
Instagram (or wherever) it sends it to your brain. Like the
Argus II, the resultant image is largely shades of black and
white, but it's better than nothing.  Then there's the cyberpunk
end of the bionic eye spectrum. This guy lost an eye in a
shooting accident and then had a camera installed in its place,
basically for the fun of it. It's not exactly a cure for
blindness, but it is pretty mind-boggling:  The Argus II is
already available in Europe and will go on sale in the United
States later this year. And