One day they'll work out how to treat -12.
They fixed mine with ICLs (Implantable Collamer Lenses). Eyesight recovery was nearly instant. I could see on the operating table as soon as they unfolded the lens. As a bonus they can be removed later or touched up with Lasik if the correction isn't perfect. Took me from minus a lot to 20/15 after four weeks. I was 20/25 by the next day. Of course, like everything, there are risks. ICLs present a different set of risks such as possible early onset cataracts.
Yea, I've seen the prices for that. And cataracts? I don't think my vanity goes far enough to risk that.
It wasn't too much more at the surgery clinic I went to. I think the difference was $200 per eye, although I could be mistaken.
I took a considerable amount of time to weigh the risks, including the possibility of early onset cataracts. After a couple dozen of years of headaches, heavy glasses on my nose, and horrible hard contact experiences I decided to go forward. So far so good. If it bites me later then I can't say I wasn't warned. If I do get cataracts later in life they'll pull the ICLs and put in a crystals lens, or whatever is used at that time. It's a very tough choice that everyone should take a considerable amount of time to consider.