They don't even need a battery.

A prototype contact lens developed by a researcher at the University of Washington can connect to Wi-Fi — and it doesn’t need a battery.

The lens demonstrates a new technology called backscatter, MIT Technology Review reports. It involves recycling signals that are already passing through the air.

“As you sit around in this room we have so many radio signals bombarding us,” explains Shyam Gollakota, assistant professor at the University of Washington. “You can harvest power from these signals [and] use reflections to create transmissions.”

The University of Washington explains that the technology “allows devices such as brain implants, contact lenses, credit cards and smaller wearable electronics to talk to everyday devices such as smartphones and watches.”

One potential use for a contact lens based on the technology could be to monitor blood sugar via tears and send reports to a smartphone.

The University of Washington reports: “Due to their size and location within the body, these smart contact lenses are too constrained by power demands to send data using conventional wireless transmissions.”

Read more at MIT Technology Review

Read more at the University of Washington

This story is tagged under:
 
SPONSORED VIDEO: OPTOMETRY WORTH SHARING

HOW TO AVOID AUDIT HELL

You may think you’re ready for a Medicare Audit. But are you? Little things count—but they can mean the difference between a great outcome and one that leaves you out in the cold. Don’t get swallowed up by the audit machine. Get this free guide to preparing for — and surviving — a Medicare Audit. Simply fill out the form to the right to access the information. Because you can survive “Audit Hell” if you’re prepared. Download Audit Kit ➡

Promoted Headlines