Sigh, John.
On the plus side, if your experience is like mine, you'll really like the outcome. Super easy, and the difference is almost literally night and day.
During the procedure, you look into the device, and they ask you to focus on a light (not bright) in the middle and keep your eye there.
In the lead-up to my surgery, I practiced holding my focus on a specific point for minutes at a time. No idea if it helped or not, but that might be something to try.
Best of luck.