Could Teardrops Replace Blood for Glucose Testing?

Does the thought of pricking your finger to test your blood sugar bring a tear to your eye? If so, you might soon be able to use that tear to get your test results.

Scientists have discovered that the levels of glucose in tears track the amounts of glucose in blood. This finding could make it possible for developers to create a hand-held meter that offers a pain-free way for the more than 350 million diabetics in the world to check their glucose levels.

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