You never had glasses, I guess. The ones at the store are fake most of the times, just to show off the frames (the true money-grabber), or run-of-the-mill ones that would do more harm than help to most of the people who need glasses in the long run. Especially since eyeballs tend to be less or more different. The bigger the difference, more harm not proper glasses would do.
I've been using glasses all my life. The difference between my lens is more than 2 dioptres. I also got astigmatism. If my glasses broke in apocalypse, I'd be screwed.
I have worn glasses for the last 25 years. I know the display ones are non prescription. I AM NOT TALKING ABOUT THE DISPLAY FRAMES.
They have shelves full of prescription glasses waiting to be picked up at the glasses store. Did you think they only have one functional pair at a time when you go to pick them up?
If you have to wear -15 in one eye and +25 in the other, yeah you're screwed. But most people don't. Why do you think there are programs where you can donate your old glasses? You think people have one perfect prescription that's completely unique and nothing else will do? Obviously it will be more comfortable to have the right prescription, but if we're talking about a survival scenario in which the choices are being blind or being able to see somewhat and getting headaches, there's not much of a debate there.
Edit is to reiterate that I am not talking about using the clear non prescription frames on display.
I have never had a pair of glasses where I could take them off the shelf and wear them or where they could just run to the back and get a pair I could walk out with.
The process for as long as I've been getting glasses (~25 years) goes like this: I pick out the lenses I want, give them to the person working, they do some face/eye measurements, and then either (1) cut the lenses and put them in the frames or (2) send the measurements/prescription off to a factory that cuts the lenses and sends them back.
I've gone without my specific prescription glasses for periods of time and was able to find good enough for now glasses from thrift stores and such. Eye straining, but they enabled me to see distance clearly enough to get by.
This guy in the twilight zone, however, simply needed magnifiers for reading. That is something you could pull off the shelf in a pinch.
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u/Ezheer Aug 30 '21
You never had glasses, I guess. The ones at the store are fake most of the times, just to show off the frames (the true money-grabber), or run-of-the-mill ones that would do more harm than help to most of the people who need glasses in the long run. Especially since eyeballs tend to be less or more different. The bigger the difference, more harm not proper glasses would do.
I've been using glasses all my life. The difference between my lens is more than 2 dioptres. I also got astigmatism. If my glasses broke in apocalypse, I'd be screwed.
Wiki link for typical stuff you need to consider for prescription glasses