[magicalist]

> And there are basic hygiene problems wearing contacts while you're asleep, which is when monitoring would be most useful. If google has the technology to make contact lenses that you can wear 24/7 without getting ulcerative keratitis, that's more revolutionary than another way to monitor blood sugar

overnight and extended-wear contacts (for up to a month, I believe) have been available for many years now.

[lhc-]

I have these, and they are indeed good for a month. To be honest, I sometimes dont even notice and wear them longer.