The Mojo smart contact lens has been tried by humans, and they lived! And their eyes were okay. And it worked!
Mojo Vision's hardware for the lens requires a neck-worn processor that wirelessly relays information to the lens and back to computers that track the eye movement data for research. For the moment, the setup also requires a special cap with an antenna built in that Perkins is wearing to ensure a smooth connection for early testing.
The lenses have a tiny MicroLED display onboard, a short-range custom wireless radio, a tiny ARM processor and motion tracking in the form of an accelerometer, gyroscope and magnetometer. It's the same lens hardware I looked at off-eye back in the spring of this year. The lenses enable eye-controlled head-up displays to appear to hover in-air, approaching a type of monochromatic Google Glass-like AR interface without glasses.
Miri... leaned her head forward, and stuck a finger close to her right eye. "You already know about contacts, right? Wanna see one?" Her hand came away from her eye. A tiny disk sat on the tip of her middle finger. It was the size and shape of the contact lenses he had known. He hadn't expected more, but... he bent closed and looked. After a moment, he realized that it was not quite a clear lens. Speckles of colored brightness swirled and gathered in it.
(Read more about smart contact lenses)