Causes
Most common cause: an immune-mediated disease that destroys the tear glands. Also caused by drugs, infections or hormonal problems. Predisposed breeds: Cocker Spaniel, Bulldog, Westie, Pug.
Diagnosis
Schirmer test: measures tear production over one minute. It is a quick and key test.
Treatment
Lifelong treatment: frequent artificial tears and, above all, drugs that stimulate tear production (ciclosporin, tacrolimus). Early treatment saves vision.
Prevention
Eye checks in predisposed breeds. The immune-mediated form cannot be prevented, but it can be detected early.

