The Equal Protection Clause of the 14th amendment of the U.S. Constitution prohibits states from denying any person within its jurisdiction the equal protection of the laws.
The treatment of watery eyes in dogs will vary depending on the cause. Distichiasis and entropion; In the case of distichiasis and entropion, surgery is the most viable option. Because the eyelashes and the hair on the eyelid can rub against the eyeball, ulcers can result. If the ulcers are left untreated, vision loss can occur; Conjunctivitis
That being said, eye drops for dogs are nearly identical to those used for humans. Most eye drops are simply a saline solution, which is a small amount of salt dissolved in water. This is a great reproduction of human tears, and dog tears are composed of nearly the same elements. When you're considering using eye drops to treat an Eye Infection though, always get an opinion from your vet.