A Silicon Valley start-up has created augmented reality contact lenses that can display a slew of information – such as the time, directions and even the speed you are travelling – directly to your eyes.

MojoVision, which has raised more than $100m (£77m), said the "Mojo Lens" contact lenses are operated by eye movements.

For instance, a user wearing two lenses can "click" by concentrating on an icon – to launch a music player, for example – and turn off by looking away or blinking.

"Mojo has a vision for invisible computing where you have the information you want when you want it and are not bombarded or distracted by data when you don't," said chief executive Drew Perkins.

In a demonstration at consumer tech show CES, the company showed how the contact lens could enable users to see a virtual teleprompter that appeared floating in the field of vision by projecting a micro-LED display to the retina.