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Smart Contact Lenses? Leave It To Google

Jan 17 2014, 9:21am CST | by , in News

Smart Contact Lenses? Leave It To Google
Photo Credit: Forbes
 
 

If you Google “blood sugar” right now, you’ll find a slew of results with Google in the header. This is because Google is getting into a new market: Diabetes. The company has just revealed a new method for monitoring glucose, in a classically Google-clever way: Smart contact lenses with tiny glucose-tracking technology will monitor wearers’ glucose levels not by measuring the sugar in their blood, but by tracking it in their tears.

“It doesn’t look like much, but it was a crazy amount of work to get everything so very small,” said Google researcher Brian Otis in a statement. The research, by the company that’s also brought us Glass and driverless cars, was kept under wraps until yesterday.

The contact lenses will monitor glucose with a tiny sensor once per second, and then transmit the data through a wireless transmitter. According to Otis, the sensor is the smallest ever made, and took years of affixing tiny wires to tiny electronics to produce it.

The blood sugar monitoring industry will reach $16 billion this year, and the devices available now – whether needle-based or wristband-based – are not exactly convenient or comfortable for users.

“Smart” blood sugar monitoring has been in the works for many years, but no one has revealed a reliable fix for the problem. Some academic institutions have also been working on glucose-monitoring contacts, but as Otis says, “You can take it to a certain level in an academic setting, but at Google we were given the latitude to invest in this project.”

The electronics in the contacts lie on the periphery, so don’t obstruct the wearer’s vision. To power the lenses, developers designed a method of pulling energy from surrounding radio frequency waves. The company is testing the possibility of adding a tiny LED light to indicate when the wearer’s glucose exceeds a certain level.

Over 380 million people are affected by diabetes globally. Many have to prick their fingers up to 10 times per day to keep track of their blood sugar and adjust insulin accordingly.

The concept could be a game-changer, for sure, but the details still have to be worked out. Among them will be how to actually calculate blood sugar from tear sugar, and how the technology might be affected under various weather conditions and various emotional conditions.

And, of course, the FDA will have to approve it before it goes to market. But Google’s reveal is exciting, and could affect a lot of people’s lives.

“We’ve always said that we’d seek out projects that seem a bit speculative or strange,” according to the official Google Blog, “and at a time when the International Diabetes Federation (PDF) is declaring that the world is ‘losing the battle’ against diabetes, we thought this project was worth a shot.”

We’ll certainly be watching to see what happens – and what other technology might soon be packed into the tiny technology of a contact lens.

Follow me @alicewalton or find me on Facebook.

Source: Forbes

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