Google has just announced a “Smart Contact Lens” which allows diabetics to measure their glucose levels easily through their tears. With diabetes becoming an increasingly growing problem, affecting every one in 19 people in the world, Google’s efforts could dramatically change how people living with the disease function daily. The lens works via a tiny electronic chip and antenna that is thinner than a human hair, embedded between two layers of lens material that reads blood sugar levels through the wearer’s tears. Testing and discussions with the FDA are under way but it could be some time before the technology becomes available to the public.