Google and Novartis have teamed up to develop a new kind of contact lens specially made to help people with diabetes.

The new smart lens created by Novartis' Alcon eye-care division and Google[x], the search engine's technology development team, is designed to calculate glucose levels in tears.

The lens has a pinhole that allows fluid on the surface of the eye to come in contact with the wireless chip that is positioned outside the user's iris. The reading is then transferred to a smartphone via an antenna that is smaller than a hair.