Contact lenses which focus 3D screens directly into people’s eyeballs could be on sale as early as 2014, says U.S. company Innovega.

The tiny ‘screens’ sit directly on users’ eyeballs and work with a pair of lightweight glasses with a built-in translucent screen.

The experience is equivalent to a 240-inch television viewed at a distance of 10 feet, says Innovega’s CEO Steve Willey.