Are you following the FDA progress of the Google Contact Lens ?
https://en.wikipedia.org/wiki/Google_Contact_Lens
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No, I've not heard of that before. I'll take a look.
Try the Freestyle Libre Pro - its a transdermal 24 hour continuous glucose monitoring device. Really useful device I've used it with several patients to help them gain a better understanding of their sugars. (disclosure - I'm a UK GP - with NO affiliation to the company that makes it)
Interesting, another thing I've also not heard of before.