I had glasses for a few months until I scratched them up too much and stopped wearing them. One thing I noticed, being a night owl who likes reading, is my headaches from squinting to read went away. Once I gave up on my specs I started accepting I needed to relax my eyes and read the slightly blurry words to avoid headaches. I never experienced the further deterioration mentioned above, but perhaps I’m a boiled frog and just don’t notice it. 😅