This is hypothetical - the glasses don't fact-check what people say, they somehow detect willful deception, like people expect polygraphs to do, but with high accuracy. Would people welcome these, fear them, object on privacy grounds? I think it would be very contentious. Would people feel different if they only fed the information to the wearer but didn't record or send it anywhere? What exactly would the issues be?
they somehow detect willful deception, like people expect polygraphs to do, but with high accuracy
This technology is a fantasy. It relies on the false assumption that their are detectable, reliable, and measurable physiological differences between bodies that are lying and bodies that are telling the truth.
Polygraphs aren't unreliable because the technology isn't ready. They're unreliable because the idea that you can physically measure a concept (lying) is logical fallacy. (reification).