Really, that's the only reason to wear glasses. It's why I wear glasses. I actually have perfect 20:20 vision. It makes driving incredibly dangerous, but it's worth it to look this scientific*
* No it's not absolutely don't drive with impaired vision for reals I shouldn't have to tell you this and I'm not sure why I'm bothering but I am seriously
People have a tendency to use themselves as a baseline for normalcy. Not always, of course. People also also often use themselves as a baseline for abnormalcy. It's sort of weird and contradictory, but we all do it to some degree or another. I know I've used my experiences as a baseline for normalcy before, and I've seen you do the same thing.
Lots of times.
I was hoping people reading the comics with Tedd observing Sarah transforming would reach the same conclusion Sarah had that it must have been something to do with the glasses, but it's always been an intentional misdirection. If it wasn't, there's little doubt Tedd would have talked about the cool new feature he'd coded into his glasses.