The word from the medicos is that ultimately, say within 20 years they will perfect eyesight correction, but they doubt it would be with laser ablation of the cornea. More likely an inter-ocular lens implant(the University of New South Wales is working on a polymer that is as flexible as the normal human lens. The other idea is a contact lens type device inserted between the cornea and the natural lens.
What ever the proceedure, there are thousands of people having their eyes done every week so there is a huge database of knowledge growing, and research in eyesight correction is progressing at a fantastic rate. Who knows what may be possible in even 10 years from now.