pLaurent wrote:As to the sight problem only, there is no reason a blind dog cannot be perfectly happy.
Dogs depend least on their sight, as scent and hearing are way more important to them. We get so upset at animals losing their vision because we think how WE would feel, but sight is our most important sense.
It's better if they are completely blind, as being able to see only shadows or parts of things can alarm them. Your dog might be better when she has gone totally blind.
I've known blind dogs and even a rescued dog who had both his eyes removed. He is completely happy and has a wonderful life, as long as his owners don't rearrange the furniture all the time.
Blindness alone (the aggression issue is something else) is absolutely no reason to kill a dog.
The only way that I would put her down is if I could not, through the help of a trainer, get her aggression under control. I know this is hard for her and I am not giving up. She is the one going blind not me and it is my job to be there and help her through this. She is my child, putting her down would be like getting rid of my kid because he became blind. This dog saved my life, the least I can do is make hers as safe and comfortable as possible. She deserves that much.