I've had two cataracts removed, one from each eye. I also had surgery to repair a detached retina. In the cataract removals, they keep you awake just so doped up Valium you don't give a shit that you are watching a scalpel come towards your eye. Then when you feel the pressure of the cut it still doesn't bother you.

My detached retina was a whole other ball game. I was put to sleep, but I was allowed to wake up when they realized they had forgotten a scope they needed for the surgery. There I sat one eye covered the other partially pulled out of socket as they are working on. I was still calm as I could be, I was even holding a conversation with my surgeon about iPhone apps. This was back when I had the original still and the 3G had but out for a few months. Since I was awake I could feel the pain more, so every 5-10 min I asked for more morphine. They finally put me back under after 35-45 min. I woke up in extreme pain, I was cussing the staff out tried to swing on them, but I was still strapped down. It turns out I maxed my pain killers when they allowed me to wake up, which was a horrible decision. I felt like I had a red hot ice pick shoved into my eye, and it was constantly being twisted and reheated. My parents could hear me screaming. It scared them and the waiting room staff half to death. I literally wanted to die I honestly believed it would of been better than the pain. Finally they decide enough morphine went through my system, that it would be safe to give me another dose. It wasn't until then that I quit screaming and threatening people. I was still super upset, because they acted like I was over reacting, but I wasn't I have had plenty of surgeries and broken bones, but nothing ever hurt like this. Finally my favorite part was some nurse had the gall to call her daughter and bitch about me causing her to be late to pick her up. I leaned up the best I could as I was still strapped down and said "If you would get off the fucking phone you curly haired bitch, and do your fucking ass job you could go pick up your shit head daughter!" She promptly said bye and hung up.

TL;DR As long as they don't max your pain killers needlessly, you won't have to call someone a curly haired bitch, and it should be a breeze!