not my child, but I had it myself. I was about 5 years old I think. It wasn't painful except for the eyedrops, but I do remember being quite scared at not being able to see at first. Also, it did nothing whatsoever, but techniques may have improved over the last 20 years. I would check on success rate before making a decision if my dd needed it. (my dd does have a squint, but has jsut been prescribed glasses for now.)
Would discuss with your opthamologist. My daughter does have one which is only noticeable when not wearing her glasses. Have been advised not to have surgery (which I'm relieved about). Some squints are not responsive to surgery apparently.
Anniebear the eye doesn't come out, they just hold the eyelids open very wide. I think in general the younger they have it done, the less traumatic for them. Its very simple and straightforward. In school, some children can make comments, even thought they don't mean it badly. Does she wear glasses?
My 9 year old daughter had squint correction when she was about three, no problems at all, then she had the other one done about 3 weeks ago. Again there were no problems apart from her now being far more aware of what was going on around her in the theatre, and obviously very scared. She has CP and I think squints are part of that, hopefully now it should sort out. As I say there were no problems it was just very, very red when she came out and she cried for a couple of hours, but by the next morning she was fine. Good luck with whatever you decided.