I got my first pair of glasses while I was in high school, sophomore year I think. Spring time. Got the transitional lenses, as I have sensitive eyes to sun light. the eye doctor I saw then said the transitional would help. PFT! outdoors, not dark enough, I need DARK sunglasses. Indoors, even if bright, transitionals are useless. But I did have magnetic clip on sunglasses, and the sunglasses were dark enough, so that was pretty cool.
I'm onto my 2nd pair now. The ear piece broke off my old pair and they couldn't fix it. So got my eyes checked, yada yada yada had a new prescription and got new glasses. Just a few months ago, January I think, I went to work, and discovered my glasses were broken (I always hang them on the front of my shirt when I wear my sun glasses and vice versa). At least the lense wasn't missing, I still had it. I started to worry I was going to have to get a new frame, and I couldn't afford it! Eye doctor (I've been going to a different eye doctor after my first pair of glasses broke) said he would do his best to fix it (sauter it, would only cost me $10 instead of $300 for the cheapest new frame). He fixed it!
Then a couple months ago, had my eyes checked as my eyes have been extra senstive again. He said my eyes were perfectly healthy. Don't need new prescription. The new prescription we ended up with, oh my gosh that was a BAD combination (I was seeing doubles right away, yikes). I decided I would keep my current glasses, and he would tint the lenses a bit so the glare from the computer screen wouldn't bother me as much, etc. The tinting has helped.
I don't need to have my glasses on all the time, but I chose to wear them all day. Helps me to read better, less headaches and eye strain. MUST have glasses when at the computer though. I can read books fine without them.
I still hang my glasses in front of my shirt. My eye doctor has never told me not to, never said anything. When I'm at work, I take my sunglasses off and leave the sunglasses on my desk, and wear my glasses. But driving and stuff, sunglasses on my face and glasses in front of my shirt. I never use the case for my glasses. but that's just me.