I had LASIK in one eye in 2007 for high astigmatism (about 4.75 diopters). I knew when I did it that it would probably not eliminate the full amount (it didn't), but it would greatly reduce it (it did). I have been fairly happy. Now I'm 44 and presbyopic (need bifocals) and the last 3 straight years my astigmatism has been getting worse again. It's "coming back" or regressing. It's my experience that a LOT of these high astigmatism cases regress, and my own situation has borne that out. Pre-treatment I was -4.75 diopters of astigmatism or "cylinder" (cyl). Immediately post procedure I was -1.00 cyl, a vast improvement! 3 years ago I was -1.25, 2 years ago -1.75, last year -2.00 and today -2.50. So I'm back to half of my original amount of astigmatism. I'm not too bothered by it. I wear progressive glasses almost all day anyway because I need them for the computer and reading, so adding in the extra cyl is easy. It is interesting tho that I'm regressing. I wonder how much more astigmatism I'll get? For the record it has not been my experience that nearsighted LASIK cases regress much. They're usually fine. And I don't refer many high cyl cases (or far sighted cases or high myopia cases) so I don't have many patients experiencing this because I'm pretty conservative.