I have never heard of stress causing cherry eye. It is from the eye duct wall being weak, which I would think is hereditary, but not aserious medical condition. It needs surgically repaired, but it is a simple procedure.
People are like slinky's, not really good for much. But its still fun to push them down the stairs.
When my school had "Career Day", I went to a vet office and got to watch/help with the surgeries. They had a pup with cherry eye and it seemed like a very simple procedure. Didn't take very long at all. I think they said that it was common in his breed, I think he was a lhasa or a shihtzu (sp?).
cherry eye may not be hereditary, but if your dog has a weakness in that eye, your pups can inherit the weakness. My vet says I need to be careful what type eye salve I use on my pups because the steroid in one of them can encourage cherry eye if the dog is succeptable to it. In other words if the parent(s) had cherry eye.
We have an american bull(had cherry eye in one eyey) that has been bred twice and none of her pups to this day had cherry eye.First litter is one year and 2 months and the second litter is 4 mnths old....
"A dog is the only thing on earth that loves YOU more than he loves himself"