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Google Tests 'Smart' Contact Lens that Monitors Blood Sugar

Internet giant Google says it's testing a 'smart' contact lens that could visually alert patients when their blood sugar level drops. Diabetics struggle daily to monitor and control their blood sugar level which, if left uncontrolled, can lead to long-term damage to their eyes, kidneys and heart. Most test their glucose level by drawing a tiny drop of blood, but scientists are trying to find easier ways to do that by experimenting with other body fluids, such as...

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