DB777
I would be very careful about having lasik with the amount of astigmatism you have. The results are not as predictable as with simple myopia.
I would speak to the CAA medical department big time before you go ahead.
Personally I wouldn't have LASIK in the first place I feel LASEK is better. I also regard wavefront technology as a must as in theory it minimizes post surgical drop in visual acuity.