Anisocoria In Dogs From Drugs. Anisocoria may occur secondary to disease of the eye, optic nerve, and central and autonomic nervous system. Does anisocoria go away in dogs?
Can anisocoria go away on its own? If there is pain in your dog’s eye, specifically, your dog may squint, and pupils may be either dilated or constricted. The cause of anisocoria varies in dogs.