"Second to the contact lenses that monitor for diabetes, Google's parent company Alphabet has filed a patent which takes their development to another level. The patent specifically covers a method for "injecting a fluid into a lens capsule of an eye, wherein a natural lens of the eye has been removed from the lens capsule." It's powered by "radio frequency energy" received by a small antenna inside. The gadget even has its own data storage. Forbes reports, it is designed to "improve vision."

Samsung is also one of the most recent companies to receive a patent for smart contact lenses. Their lenses are for "experimenting with new methods of delivering augmented reality interfaces and data."