Not sure where you live, but the company I work for (B&L) makes the lasers for this type of surgery. the latest form of this is called zyoptics. It not US - FDA approved yet, but I know its being tested. I think its available in Europe and Canada right now.

the difference in the procedure is upfront diagnosis of your eye. The Ophthalmologist maps the various lenes of your eye, to precisely determine where the inaccuracy is. A computer takes this data and plots the best possible cornea shape to correct the total eye geometry. I am probably doing a poor job of explaining, but I am just a computer geek not and eye doc. Here is the first link i found :

http://www.laserfocus.com.au/equipment.htm

I know that with this procedure the risks are minimized, and the outcomes have been substantially better. I think most outcomes are 20/20 or better (BTW - 20/20 is average, 20/10 is considered perfect vision).