I got Layla about 6 days ago, she is a full blooded blue tri-colored deer head Chihuahua, I was told she had an ulcer but is now healed, so that isn't my problem, my problem is I was just told today that she was born without her left tear duct, and that I have to give her medication 2-3 times a day for the rest of her life, this can get very costly. What I would like to know is what is this called? In veterinary words. I was told all this by the person I got her from, not from the vet, I have a vet appointment in two weeks, but I want to look up everything I can about this, and can't find anything because I don't know the actual term for it. Also if anyone knows if there are any other ways to cure this, maybe even surgery, please let me know. She can't open her eye all the way and there is a cloud over her eye, she squints constantly, and most of the time wont even open it, it really looks bad and I hope to find a cure for this. Thank you all.