What do you mean she is blind without her prosthetics? Isn't she still blind with the prosthetics or do they help with vision somehow?

The glasses seem like a better form factor than a hand-held phone, for the use case where you're out and about and your hands are full, managing a service dog harness and/or cane, and trying to shop.

So, I guess you could mount your special phone for the blind on your chest or waist and have it talk to bone conductive headphones you're wearing. And pick up whatever you'd like described and hold it in front of your chest/waist.

(There's other options, the glasses just seem more convenient because they're on your face.)

You could carry a laptop and use it's webcam too

It's down to convenience. I'm already looking at what i'm what i'm trying to film, instead of just recording that, i'm looking at my phone screen to try to record the thing and not even witnessing it in real life. I'm at my kids track meet, any time i'm trying to record him running i'm experiencing it through a 5" amoled screen so i my wife can have a video instead of just being there.

We can figure out how to make them impossible not to notice they're recording. we just need privacy shutters or to have to hold the temple or something.

My wife helps people with this app on a regular basis.

Yes, and anyone that buys these glasses to increase their independence is a predator, like the parent poster says. /s