Smart Lenses to Monitor Glucose Levels

It looks like “hands-free” diabetes management is around the corner. Google X labs announced that they are testing a smart contact lens built to measure glucose levels in tears—early prototypes can generate a reading once per second. The lens will hold a tiny wireless chip and miniaturized glucose sensor that is embedded between two layers of soft contact lens material. Researchers are also looking into the potential use of smart lenses as early warning systems for the diabetic wearer, perhaps through integrated LED lights that light up to indicate high or low glucose levels. In addition to mortality, uncontrolled blood sugar can increase the risk for damage to the eyes, kidneys, and heart. Glucose levels can change rapidly, even with normal activity like exercising or eating. Sudden spikes and drops are dangerous and can require 24/7 monitoring. Google is working with the FDA to turn the prototypes into technology that people can use, and is looking for partners to bring such products to the market. Reference: Otis B, Parvis B. Introducing our smart contact lens project. Google Blog. 2014 Jan 16. Available at: http://googleblog.blogspot.com/2014/01/introducing-our-smart-contact-lens.html.