A contact lens that allows you to zoom in by blinking

Researchers from the University of California San Diego have created a robotic lens that is controlled by small eye movements, including double blinks to zoom in and out. The lens is made from polymers that expand when electric current is applied. Scientists hope one day this could help create a prosthetic eye or a camera that can be controlled using eyes alone. www.independent.co.uk/news/science/robotic-contact-lens-zoom-blinking-signals-a9024176.html

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