Smart Contact Lenses

Sony is developing a smart contact lens which can record videos and play them back. Each contact lens can be controlled by the user’s deliberate blinks and it features autofocus, exposure adjustment and zooming capacities. 

It also features piezoelectric sensors which convert the movement of the eye into energy to power the lens.
The image capture and storage technology are embedded in the lens around the iris. Inbuilt storage allows the user to access these recordings and images easily within the lens. The design of the smart lens was revealed in Sony's patent.

Google and Samsung are also developing their version of the smart contact lenses which could also feature night vision and thermal imaging.