Scientists Create Contact Lenses That Zoom In When You Blink Twice

Scientists from the University of California, San Diego, have created a new robotic soft contact lens that lets you zoom by blinking twice. The lens can be controlled by your eye movements.

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How is this possible? In the simplest of terms, the scientists measured the electrooculographic signals generated when eyes make specific movements (up, down, left, right, blink, double blink) and created a soft biomimetic lens that responds directly to those electric impulses.

The lens created was able to change its focal length depending on the signals generated.

Therefore the lens could literally zoom in the blink of an eye.

“Even if your eye cannot see anything, many people can still move their eyeball and generate this electro-oculographic signal.”

So, these scientists measured the electrical impulse and found a way to use it to change the focal length of the lens. The study claims that because of the soft materials used in the lens, relative changes in the focal length can be as large as 32%. The focal length is changed by deforming the lens. In the experiment, the team used dielectric elastomer to achieve the required deformation.

The scientists said this lens can be used for visual prostheses, adjustable glasses, and remotely operated robotics in the future. But I bet you’re already dreaming of wearing this and becoming a superspy?

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