Yeah i've had like 4 surgeries (3 of those in a one month period cus of my appendix)...and i didnt really find it nervewracking at all...
My dad had Lasik and he said its not bad at all..
If you dont want to know what their going to do dont read past this
This is all done while your awake but you can't feel a thing. They take a ?laser? and cut the top layer of your eyeball off. Then they peel that open and shoot a laser at the uncovered eyeball making your vision good again. Then they put it back and seal it back shut and you have to use eyedrops for awhile.
Im sure theres alot more but thats all i know