Question for any nerds out there who might know more than me. I'm getting another pair of glasses from Zenni, and they're offering their infrared light blocking glasses called Zenni ID Guard. From what I see from their marketing, this seems like it might be good, since they say it blocks the infrared light that can be used to track your face. But, tbh, idk if that's just marketing bullshit, or something that actually meaningfully improves privacy. So like, would you recommend these, or should I just save my money?

https://www.zennioptical.com/id-guard

#privacy #tracking #optometry #glasses
Zenni ID Guard: Helps Disrupt Unwanted Tracking & Defend Your Privacy | Zenni Optical

Anti-infrared lens technology reflects near-infrared light—reducing unwanted tracking signals and long-term IR exposure from the sun.

Zenni Optical

Also, related question, but more for other kinds of nerds ig. Do you think blue light blocking glasses are worth it, or should I save my money on that too? Like, I currently wear blue light blocking glasses, and I didn't notice a huge difference since I started wearing them, but maybe they are good for me, and I don't wanna hurt my sleep or anything. Like, I think it could help, since I spend a lot of time on my devices like my phone and various computers.

#optometry #glasses
There are blue light filters on devices, like inside of KDE, windows, and Android, but idk, personally I feel like maybe having it in the glasses themselves could be better? idk.
@kdj8 it's also a myth, it doesn't really do much besides supposedly reducing eyestrain and helping you sleep better

if it's a really marginal cost, why not, but if it's a huge extra. don't bother
@kdj8 I looked onto the topic a while ago and the studies that say that blue light is bad for you are... inconclusive at best. It doesn't help you sleep, that much is true. Bad for the eyes? ... Not so much

@kdj8 I think I saw a review of these, and they do break things like Face ID that use IR to scan faces. I was interested in them at the time, but didn't have my prescription etc. etc. (executive function is an issue for me). So probably not BS.

I don't know much about blue light blockers, but it makes sense that simple technology like that would actually work. 🤷

@kdj8 glass mostly blocks ir by default, visible light face-scanning would still work and ir scanning is pretty low resolution (usually 128x128) so the eyes aren't that big of a data point anyway. it's more about the overall 3d shape of your face, also software correction for glasses definitely exists.