I neither saw nor smelled smoke
although I was holding my breath trying hard not to move, maybe the valium worked better than I thought!?
I was VERY scared - but I would do it again in a heartbeat! You have to be awake and focus on a (for me red) light, but the entire procedure took maybe a minute per eye (22 seconds getting zapped for me, depends on your prescription I think) and I just gritted my teeth, help my breath and didn't move. You can't blink so that's not a problem (eyelips propped open, taped out of the way)