The first time resulted in me having astigmatism which was not correctable by glasses, I don't know the root cause but I am sure protocol had a major bearing on it. First surgeon worked from a prescription performed by my optician which could have been to any standard. The second one had his own staff do the eye test earlier the same day of the consultation, he even did a wavefront scan to double check just before going in to the operating theatre and again immediately after. The first surgeon was a very famous one and always on TV at the time, when I said that the result was sub optimal, he basically didn't want to know, very arrogant. With my second surgeon, his attitude was completely different and he actually listened to me. They were both in the same hospital the equipment was the same but their methods and attitude couldn't have been more different.
Given the above, it is of the utmost importance that you see the same person throughout and that they listen to you. I see so many conveyor belt laser shops where they get a visiting surgeon in to do a batch who then buggers off, that scares the willies off me.
Hope this helps.
Cheers
jc