Lou, one thing to watch when having one eye zapped if your are wanting to obtain or retain a Class1 medical is the prescription between both eyes must be relativly balanced! (Within 2D if i recall?)
I have had sucessful LASIK, and today my prescription stands at -0.5D in both eyes, however only one retains enough corneal thickness for an enhancement to be possible, I have decided against that for now anyway, as it would unbalance my eyes and may mess up my chances of Class1 (if there are any!).
Something to think about....