I find this so ironic that you post this question. I posted the same question a couple months back. My daughter actually just got the procedure done last week!!!!
First off, my son, now 7yrs, had a blocked tear duct since birth, with him we did a eye drop and massaging, and it went away by about age 1.
My daughter is now 19mo old. She's had a blocked tear duct since birth, but it became a huge problem this past fall with chronic infections, green goopy stuff and tearing from the eye. We saw a eye dr, and did the drops and massaging and it just wasnt working for her.
So....... if it doesnt clear up by age 1yr, they talk about the eye probing and suction. It sounds a lot worse than it is. It is under general anthesia, and I can tell ya how well it went. It isnt "surgery". And the anthesia is more so they will be still, and it only takes about 10min to do. We were told she will still have some tearing for a couple days. So it will be a couple weeks to find out for sure if her eye is now fixed. I know a few people that had it done, and it worked wonderful!! Dont worry if it came to her having the procedure, it really was not at all as bad as I thought it would be ........
If you are concerned about it, I would request to be refered to a eye dr, that is what I did.
Best of luck!!