A quick update to my previous comments in reponse to some e-mails received.
My prescription was not too severe - roughly -2.00 with 1 diopter of astigmatism in each eye. I can't exactly remember what my corneal thickness was but believe it was in the range of 560 - 600 microns. No cause for concern anyway.
However, I should mention that the team at Accuvision were slightly concerned at the steepness of the cornea in a particular area that indicated some possible thinning. To minimise the risk, they cut the flap with an inferior hinge i.e. the flap is upside down when compared to the standard procedure. I was led to believe that they can do this because they have something like six different microkeratomes at their diposal and this enables them to ensure they can choose the one most suited to your procedure. None of the other clinics I attended saw the thinning as a problem, but I was comforted that Accuvision were prepared to carry out this non-standard procedure in order to minimise the risk of future corneal problems.
Now five days post surgery. Still very pleased - minor fluctuations still being experienced, distance vision is great, vision at reading distance is variable, but manageable. I'll find out more when I go for my next check up tomorrow.