I'm so sorry for your loss. Those types of things are so difficult.
It's best not to dwell on the "what ifs". Clearly, your dog was in tremendous pain and distress, and I think you did the right thing based on the circumstances. I'm no vet, but glaucoma alone isn't likely to cause all of those symptoms. Bulging eyes, perhaps, but seizures, vomiting, unbalanced, and losing control of the bladder really are not...Dogs can and do get epilepsy, however, which would fit those symptoms. Seizures can be idiopathic, which means that nobody knows what causes them, not even the vet, so the best they can do is prescribe medication to control the seizures. The medication may or may not help. Many people have chosen to euthanize their dogs because the seizures were unable to be controlled with medication and their dogs spent so much time in pain and disoriented. The medications themselves can have some adverse side effects, too.
I don't know if this will be helpful to you or not, but here is an article on canine epilepsy. I hope, if anything, it provides some closure: AKC Canine Health Foundation
You could have run all the tests in the world and tried every medication, and it might not have helped. It would have just prolonged your dog's misery. Now, she's pain free.
I wouldn't be too hard on the vet, either, because it sounds like they had no idea what was causing the seizures. Most vets aren't going to say "I recommend euthanasia", either, unless you have a really exemplary relationship. They're going to tell you, to the best of their ability, what's going on and what the outlook is, and it's up to you to make the decision. Most vets aren't going to agree to euthanize a dog who has a really, really great chance of pulling through and leading a great quality of life, either, so think on that.
It's best not to dwell on the "what ifs". Clearly, your dog was in tremendous pain and distress, and I think you did the right thing based on the circumstances. I'm no vet, but glaucoma alone isn't likely to cause all of those symptoms. Bulging eyes, perhaps, but seizures, vomiting, unbalanced, and losing control of the bladder really are not...Dogs can and do get epilepsy, however, which would fit those symptoms. Seizures can be idiopathic, which means that nobody knows what causes them, not even the vet, so the best they can do is prescribe medication to control the seizures. The medication may or may not help. Many people have chosen to euthanize their dogs because the seizures were unable to be controlled with medication and their dogs spent so much time in pain and disoriented. The medications themselves can have some adverse side effects, too.
I don't know if this will be helpful to you or not, but here is an article on canine epilepsy. I hope, if anything, it provides some closure: AKC Canine Health Foundation
You could have run all the tests in the world and tried every medication, and it might not have helped. It would have just prolonged your dog's misery. Now, she's pain free.
I wouldn't be too hard on the vet, either, because it sounds like they had no idea what was causing the seizures. Most vets aren't going to say "I recommend euthanasia", either, unless you have a really exemplary relationship. They're going to tell you, to the best of their ability, what's going on and what the outlook is, and it's up to you to make the decision. Most vets aren't going to agree to euthanize a dog who has a really, really great chance of pulling through and leading a great quality of life, either, so think on that.
