I had it done a few years ago. I called an ALPA AME and he told me what to do. You can go get the surgery without telling the FAA. Just make sure you don't fly until your vision is at least 20/20 and stable. There is an FAA form that has to do with vision. I'm sure you can find it in a quick google search. Have the doctor fill out that form and bring it with you next time you renew your medical. It was that easy.