I've had laser treatment on the eye. But I wasn't given time to worry about it. Had a tear in the retina and it seems like they were trying to seal it.
Look, it's not pleasant but it's ok. They shine the very very bright light (the laser) into the problem eye. I coped by trying to ignore that eye (at that brightness you can't see anything else but light anyway) and mentally concentrate on what can be seen with the other.
It is uncomfortable as they sort out the retina issue, but as I said, it's ok. Eventually it's done and it takes a short while for the eye to clear itself and you can see properly again.
After that, it's done, and you have avoided going blind in the eye. Great relief all round.