I did a lot of research before going to this clinic for bilateral wavefront surgery - I had a prescription of -10 in both eyes and most clinics either refused to do me (in case they messed it up and I affected their statistics) or I simply didn't feel they were professional enough. I didn't have any of those problems with Advance. The surgeon, Mr Pialli, did all the important tests - unlike other clinics that allow their sales people to do them - and I felt they really knew their stuff. They were friendly, helpful and honest with me. It is surgery and does need to be seriously thought about - I was asked about my resons for wanting it and my expectations. The surgery went well and by the next morning (about 19 hours later) I had driving standard vision. By the next week I had 20/20 vision. I cannot reccommend them highly enough. My night vision was a bit affected for about 3 months but now it is better than ever. It really was lifechanging and I would reccommend the clinic to anybody. If they can sort out my -10 vision I think they could do pretty much anybody!