I'm looking into it because of my father's eyelids...

My father is also in his 60s and had upper eyelid surgery at Elite. It took about a week, and from about five days in, he was fine to go out. He wore sunglasses when it was very sunny, just in case~~

Isn't two weeks usually enough for upper eyelid surgery?

Upper eyelid surgery can be a bit tricky, but the bruising usually disappears within about a week, and the eye shape looks natural!