> Will it do damage long term if we don't have the op??
It really depends on the severity of it. Mild cases may not need any treatment, other cases may need occasional treatment (to help lubricaate dry eyes or to treat an infection). Severe cases would need an opperation.
As opposed to what some people seem to think, ectropian is NOT an eye infection, it does not
mean eye infection and it is not conjuctivitis, it is droopy eyelids. The droopy eyelid leaves the eyelid exposed, this can
lead to infections
A droopy eyelid may not be developmental (ie, may not be a genetic conformational problem), they can be caused from infection, trauma or something in the eye and also be a sign of disease & a symptom of old age.
I too would not have my dog operated on just because his eye watered. I'd treat the symptom.