Weepy Eye in Dogs

Weepy eyes, or epiphora, can be temporary (because of an allergy or irritant) or permanent (because of a structural defect). Some dog breeds are more prone to epiphora than others, such as the poodle, Maltese and Shih Tzu.

  1. Breed

    • The tear ducts of some large-eyed dogs, Chihuahuas in particular, weep frequently to keep the surface of the eye moist and free of debris.

    Food Allergies

    • Weepy eyes can result from allergies to commercial dog foods. HolisticPetInfo suggests reading labels and avoiding "BHT, BHA or ethoxyquin and food coloring."

    Irritants

    • When eyelashes grow inward toward the eye or when foreign matter (like a speck of dust) gets trapped beneath the eyelid, a dog's eye weeps in an attempt to dislodge the irritant.

    Blocked Ducts

    • Dogs' tear ducts drain into their nasal cavities in part to keep the nasal passages and snout moist. Dogs with narrow or partially-blocked pathways may experience excessive external tearing, or weepy eyes.

    "Rust"

    • VetInfo says the "rust" stains on fur from weepy eyes are because of iron-carrying molecules being broken down by bacteria. Though tetracycline can help, it's best to check for problems like glaucoma or uveitis.