Yeah, it is some bloodlines of Collies... (My sister-in-law has Collies, and they have all sort of issues like that..) We have German Shepherd Dogs, and have never had an issue. A competent (and I stress competent) vet should be aware of these sorts of things...
Yup, just why people need to have a good vet and keep them in the loop. I always hate when I move and have to find a new vet.