Alex, what did Gatwick say about having LASIK to bring you within the Class1 criteria. I remember reading somewhere they would not allow refractive surgery for Class1 if you didn't already meet the Class1 requirements pre-op. Ie, if you couldn't hold one before LASIK, you can't after it.
It'd be fantastic news if they have said its OK in your case though. Please let me know, I'm in a similar situation! (But had LASIK 3yrs ago for other reasons, am now well within Class1 limits now, but I was outside them before surgery)