Grumpy Old Geeks Products Google smart contact lens project Product Google smart contact lens project 2 mentions in 1 episode A contact lens project the hosts discuss in connection with a possible blood sugar indicator. Mentions 43: The Gloves Are Off Feb 3, 2014 58:49 Hoping to have the LED like if you’re a diabetic and your blood sugar goes low. 59:06 I would talk about the smart contact lens project for about an hour.