Research could help in programming robots with 3D vision.

Researchers in the UK have developed the world’s tiniest eyeglasses for a research project into 3D vision. The 5-millimeter glasses are fitted onto praying mantises in an effort to determine how the insects see the world. "If we find that the way mantises process 3D vision is very different to the way humans do it, then that could open up all kinds of possibilities to create much simpler algorithms for programming 3D vision into robots," explained a member of the research team.

Read more and see images at Huffington Post