Hi ScapeGoat
I had about 6-7 laser sessions around 15 years ago to both eyes. I still have enough vision to drive - the only areas that I notice missing are high and low, so mostly have to watch where I'm walking a bit more. I didn't find the laser so bad - just unpleasant, like going to the dentist perhaps.
Anyway, they finished my course of laser and I have been stable ever since (still get annual checks). Although it's perfectly natural, please try not to worry too much as it might not be as bad as you imagine.
Hope it all goes well for you.