I'm afraid my chinchilla might have a problem with overgrown roots bc I noticed a couple days ago his eyes began to bulge. I've heard when it gets to this level, it's less cruel just to have him put down. I haven't gone to my vet appointment yet but I will soon. He's about 4, but I got him when he was a little over 1 and don't know his origin before he was placed into my care by owners who couldn't manage him (i think i heard they got him from your average pet store, like petco). He's had a good life, I've been following guidelines carefully for care and he's got lots to chew on. This really came out of nowhere and before I explain to my parents that he'll probably have to be put down, I want to know if perhaps there's something that possibly caused this of my doing, or is this due to poor breeding as I've heard can happen.