Had mine done 16 years ago in London, Optimax on the Fichley Road. £375.
It was the old style called PRK, basically they lasered the front of your eye shorter. I was very short sighted, and now I am still on 20/20 vision, though I am soon approaching the age where I will need reading glasses.
Best thing I have ever done. No regrets. Yes there were some short term issues, and one long term issue. They are both basically about night vision, now in my left eye I get a very slight halo around lights at night. Nothing too bad, and my right eye is much better at seeing in darkness than my left because of it.
I had to have my eyes done 6 months apart from each other due to the type of operation (Lazic and Lasac were not yet invented), basically they operated on your worst/least dominant eye to see how well it healded and then made any adjustments needed for the better/dominant eye. As mine was the right eye sronger it worked out ok for shooting and other soldier type activities.