Scientists create contact lenses that zoom on command

Blink twice to get a closer look.

Sponsored Links

Amrita Khalid
July 30th, 2019
blurf via Getty Images
blurf via Getty Images

Nosebleed seats may soon be a thing of the past. Scientists at the University of California San Diego have created a prototype contact lens that is controlled by the eye's movements. Wearers can make the lenses zoom in or out by simply blinking twice. A paper detailing the team's findings was published this month in Advanced Functional Materials.

The biomimetic lens are made of stretchy polymer films that respond to the electric signals generated by your eyes when they make a movement, such as blinking. Known as electrooculographic signals, humans are even capable of emitting the electric impulses when they're sleeping. "Even if your eye cannot see anything, many people can still move their eyeball and generate this electro-oculographic signal," said lead researcher Shengqiang Cai to New Scientist.

But don't throw away your reading glasses or binoculars quite yet -- it's still early days. Gizmodo reported that the prototype only functions in a special rig, and test subjects had a series of electrodes placed around their eyes. Scientists hope their invention can be used in prostheses, adjustable glasses and remotely operated robotics in the future.

All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission.
Popular on Engadget