There are 3 techniques widely used: PRK, Lasik, and in-the-eye correcting lense. There were also some tries for corrective vision surgery in the former Soviet Union, basically close to PRK but the results didn't seem impressive. It was basically just scratching the eye surface to correct the vision, and the scars often weren't predictable.
i had an eye surgery done in 1999/2000. (separate time for both eyes, so one in december, one in january.).
before i had it done, i asked a lot. my pupils are HUGE, in dark they get to 9,5 - 10 mm wide. the surgery could help up to 6 mm .. up to 7 mm, depending on technique and doctor. so he explained me i could have a night vision .. different than normal. i do: in dark i see e.g. the traffic signs clearly, but it appears to be a light 10 times as big as the sign behind it. taht is the part of my eye that still forms the old vision. it is not disturbing though - the old vision was so impaired that i could not see my fingers, and now the old vision does not make anything (apart from the "light") blurry as it was so significantly worse and so unclear compared to the new, correct vision.
i asked for it, and i'm glad i did rethink it. i am allergic to a lot of things so in spring it was always plain impossible to wear contacts for over 2 minutes. i got really tired of wearing eye glasses too, i got my first ones when i was under 10. i'm also happy i could do the surgeries apart: if for some reason the eyes did not heal as they should, even if the chance was 1 of 100 000 000 i still have only 2 eyes and would n ot like to lose both of them.
it was expensive, but worth it. if i could have waited for 2 years i might hav egot it cheaper via public healthcare but i don't trust thte public health care doctors (in italy, especially for eye surgeries.).
i would do the surgery again if i could choose again to do it or not do it.
my vision is not 100 % perfect, but i can see well and its well enough to be allowed to drive without glasses. for whatever minor defects it'd have from the perfect vision, i don't want to have eye glasses to correct it.
PS. Panther day... AND this was my 500th post I think, time for the avatar ...
