Google contact lenses can test for blood glucose levels

Google's contact lenses will be able to test people's blood glucose levels through an embedded chip.

Google is stepping up its game in the health world.

It's been granted a patent for "smart" contact lenses.

The lenses are "smart" because it's able to test people's blood glucose levels through an embedded chip.

A tiny hole in that chip allows tears to flow through and then the chip acts as a sugar test strip.

Google says this could eventually replace the finger prick millions of diabetics have to do now.
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