I had Lasik several years ago (maybe 5 years). I was near blind (20:800) and had about 6 diopters of correction with no astigmatism. I asked my doctor not to short one eye, but set both eyes for distance vision.
The doctor started me on the optical steroid before the procedure (not typical). One of my flaps was bungled and took over a week to heal and reform the columnal cells typical of the surface of the cornea. He said he had a few cases do that where the drops were started before the Lasik procedure and he was going to stop asking patients to start the drops before the Lasik procedure.
The second mistake was that the area of the correction was not as big as my pupil gets at night, so I have bad star bursts at night when my pupil dialates larger than the area that was corrected. I am told this will get better with age because my pupil will loose range with age.
The third mistake was that I asked for both eyes to be set up for distance vision and to not give me mono vision. Mono vision is where one eye is shorted about 1 diopter to help with reading. Well, I think the doctor thought I did not know what I really wanted, so one of my eyes happens to be shorted 1 diopter. The problem is that he shorted my dominant eye. He did not notice that I am left handed, I wear my watch on my right wrist, and I am left eye dominant. This is a PITA most of the time including shooting hand guns.
I am legal to drive without glasses, and water skiing and snow skiing are great without glasses. I did alot a research and asked lots of questions before hand, but was rather disappointed in my outcome. If I had it to do over again, I would try to find a doctor that did the pre-op, the procedure, and the post op work. My regular doc did the pre-op and post op, but another doc did the Lasik procedure. I even paid about $1000 more ($4k) than the cheaper guys around to make sure it was done right.
My best corrected vision is not as good as it used to be, but without any corrective lenses, my vision is much better of course.