i think i have a clue..

[Libra]

For some people glasses have become a part of who they are. So why should they have to take them off for a video?

What I think is interesting is that you don't see any light reflecting off of them. She must only use light from above. When I use light in front of me it reflects off my glasses and looks just terrible.

[nowherepixie]

Depends how bad your eyesight is. Might be off putting to just see blurs. I have no idea I don't really need my glasses