Having very short sight (-9) and an astigmatism, I was always nervous about laser surgery. Centre for Sight examined my eyes very thoroughly and then were very open. The surgeon explained that my eyes were at the limit of what they could achieve and that depending on how the initial stage of the operation went they may only be able to correct to -1. I still went for it and it was a total success - even 3 days later I have better than 20/20 in both eyes!Thank you!!