Not to mention the obesity.
Sure, there are foodies and people not in perfect shape in Star Trek, even on Starships (of the kind that carry civilians, like the Enterprise D).
But outside of maybe admirals, I’ve not seen anyone wearing a Starfleet uniform being obese in Star Trek.
Oh!
Just realised when posting; the glasses! Eyesight problems are relatively trivial to fix, unless we’re talking about some extreme case like Geordi.
Geordi had the option to fix his eyes completely but chose to keep the visor because it was better (like he could view different wavelengths and filter stuff and such). I can’t remember if he had that conversion with Q or a starfleet doctor (or both?), but I’m certain it did come up at some point.
Edit: seems everyone who replied is right, plus other instances of advanced alien cultures offering the same thing. He could have just had a recording of his response ready.
He had that conversation with Riker after Q gave him Q powers and it kind of got to his head



