Hi Jim,
Good luck for Tuesday. I had laser many years ago...and like you, worked with lasers at the time, so yes, it does feel odd to actually have it aimed at your eye. Like others said...uncomfortable, but not too painful. I had blurred vison for a week afterwards, but this c;leared, and my visiion is now back to almost normal. I do have a verys small amount of peripheral vision loss, but this does not seem to affect anything, and I only miss a few spots on the visula fields test.
I was too scared at the time to ask all the techy questions....that in hind site I wished I jhad asked...but I did manage to fix teh laser for the Dr...so he didn't have to cancelmy treatment. This was over 15 years ago now!