I was something like -8, -9.5 before getting LASIK at about 21.

My eyes couldn’t focus beyond a reading distance afterwards. No lens could get me to a legal driving eyesight.

Surgeon had no idea why. He re-lifted the flaps afterwards and flushed beneath them on the hunch that it might be from slight ripples. Horrible experience, didn’t fix it.

Hard contacts worked, but a second surgeon advised against having anything in my eye while we figured it out.

After about a year, it healed enough that eyeglasses could refract me to good vision again.

So I still wear glasses, but my vision is much better without them. (-2ish range these days.) Pretty awful experience, but I like glasses and it was a big improvement from where I was before.