probing procedure on valium... in my eye!!

i went to see the ophthalmologist i was referred to for my eye surgery. he seemed nice. the office was very different. it was like an all in one free for all eye center full with a store of eye glass frames. there were ophthalmogists, an optometrist,opticians and others. there's a sun room in the middle of the office with a tree growing in it. i should have taken a picture.

after speaking to him briefly about my teary left eye, he stuck a syringe in my eye and injected saline without warning. suddenly, i was in a lot of discomfort. the doctor explained to me that he would be doing a probing procedure where he will put me on valium to relax me and insert tubing in through my tear duct to push out the blockage. here's an illustration:
this procedure should clear out the blockage at the top (to come down through my throat, gross!), however, if there is blockage deep in my tear duct, i will need an operation. the deeper the blockage is in the tear duct, the more serious it is. the doctor mentioned that he had a feeling that the blockage in my eye is deeper in my tear duct due to the amount of mucus that discharged when he injected saline into my eye. if this is the case, he will know soon after he does the probing.

i see him in two weeks... until then, he doesn't want me to clean out the build up in my left eye to see how much accumulates. then, i get to do the probing procedure while fully awake and in utter discomfort... eek.