New smart contact lens senses glucose. Image: Wikimedia Commons
Smart contact lens developed to measure glucose

Korean scientists have developed a smart contact lens that is able to measure glucose levels in tears. It is equipped with a LED that reports when glucose levels are abnormally high. The lens monitors glucose constantly and measurements show a good correlation with glucose blood levels. The advantages for diabetics are clear: blood samples are no longer needed, the lens works 24 hours per day, and has an alarm system built-in. Patients need to be patient though: the lens is a prototype that has been tested only in rabbits.

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