My son had the surgery at 9 months old. But his eye would matt up all day long and looked as though it would scab over.... We tried the massage and the warm towel tricks and nothing seemed to worked, it just got worse as the day progressed. The surgery went fine other than the Doctor did say if we would have waited much longer then he would have had to do reconstructive surgery on the duct.... He is now 14 years old with no problems.... Other then a stigmatism but he gets that from his Dad.....
I was also worried about him going under anesthesia, but the doctors and the nurses talked over that with us and it helped a little, but when it comes to our babies we just worry.... I can say that after the surgery it was nice because he wanted to cuddle with momma again instead of crawling around everywhere....
Hope this helps you out.
Wish you the best of luck and will pray that you will have comfort in making the right decision....