Digital Contact Lenses Can Transform Diabetes Care
Google submitted a patent to the US Patent & Trademark Office in 2014 that described a digital, multi-sensor contact lens that can also detect blinking, with benefits like turning the page of an e-book with a “blink of an eye”. Later, more details about the idea emerged, revealing a much more transformative use for the contact lens – measuring blood glucose from tears.
How will the digital contact lens help diabetes patients?
Sensors are embedded between two soft layers of lens material and a pinhole in the lens allows tear fluid to seep into the sensor and be used to measure blood sugar levels. A wireless antenna, thinner than a human hair, will act as a controller to communicate information to the wireless device. Data will then be sent to an external device. Google engineers even considered adding LED lights that could warn the wearer by lighting up when the glucose levels have crossed above or below certain thresholds, but abandoned the idea as the arsenic content of LED could prove dangerous.
The contact lens analyzes blood glucose level every second and transmits the data to an associated app. Detailed readings are available at a tap on your phone. When blood sugar crosses certain thresholds, the app notifies you instantly to act, or to contact a physician if the situation is serious.
Keeping blood sugar levels optimal all day, avoiding spikes or lulls during sleep – these everyday problems wouldn’t depend on pure luck anymore. You could also forget about pricking your finger several times each day. As one of the most powerful ways technology will change dia Continue reading