I had my surgery in 2001. I went for my 1st 3rd class in 2002, about 18
months later.

FAA sent me a 2 page form for my opth (I can't spell it...) to fill out.
Unfortunately at the time, I didn't know better, and trusted the doctor
to send it in. Now that I'm nearing my check ride, I find out about
this, so they sent me another copy of the form, I go to a different
doctor and I send in the forms myself. FAA said no problem.

I think there is also the possibility you might have to wait 6 months
after the surgery??? I seem to recall something about that.

It doesn't stop you from flying though. You can fly, just not as PIC.

John