I've worn glasses for 62 years since it became obvious that I was short-sighted being unable to see the blackboard at school. I've used cameras for some 44 years now with all sorts of viewfinders and I still can't totally conquer the problem. I have developed long-sightedness and astigmatism with age, so I'm really stuck with a problem. I have tried using dioptre correction eyepieces and hanging my glasses on a string, but that really is a hassle and latterly with astigmatism, is no longer an option
I use varifocal lenses, so if I try and use live view, I have to tilt my head right back to the extent that it gets painful.
Despite all this, I have found I can use a good SLR viewfinder without any problem whatsoever and can see the whole frame with settings information. I stress "good" though. I asked the question from the optometrist during my last eye test as to how it was that I could see distance and macro through the SLR viewfinder without adjusting my glasses. Apparently on an SLR it's all at infinity? I don't really get that but it's borne out by my own experience.
I just went though an expensive exercise of buying an X-Pro1 and trying to get used to the viewfinder (optical or digital). I gave up in the end, but I would suggest that if you get the correct diopter eyepiece, or if the camera has sufficient adjustment (your optician can tell you the setting), and are prepared to remove your glasses, it's worth a try. Rather than tilting them up on your head, try the hanging strings you can buy cheaply. Again it's worth a try.
Experiment, and in the end make up your own mind how best to deal with it. I did find professional advice very useful and you might try asking about photography issues next time you have an eye test.