DIY

The optometrist can cut the lenses to any frame, so I got pretty generic lightweight plastic frames and nice scratch resistant lenses.

I've had them for probably 7 years at this point, one of the arms broke ones so I went to the dollar store, bought one of those, removed the old, broken arm, added the new arm on.

works like new.

That's the only time they've broken, and I can always fit the new lenses into any of those bargain bin glasses if the frame breaks again.

you can try one of the 300 pairs the dollar store has, find the one that's more comfortable for you than the others, and there you go.

in what way are they unwearable?

Since you asked on DIY, I can point you to my own 3D-printed glasses:

• You print them yourself - or have them printed. They cost pennies in filament. Any FDM printer can make them in 15 minutes. Break them, print another one.
• They're very light: my own pair with Trivex prescription lenses weigh around 11 grams. They literally disappear on your face.
• They use wire temples - i.e. hooks behind your ears - so they never slip off. Once they're on your face, they stay there, however hard you shake your head. And since they're very light, they don't hurt your ears.

Wrong sub