Eye Mucus in Canines

A certain amount of eye discharge is normal for dogs. They often get dust, hair and other floating objects in their eyes, and tearing is a normal reaction. However, excessive discharge can signal an eye infection.

  1. Types

    • Excessive eye mucus is caused by a number of different factors. The Go Pets America website indicates that conjunctivitis, or inflammation of the mucous membranes, is a common eye condition caused by allergies, irritation or infection. Keratoconjunctivitis sicca, a lack of moisture in the eye, is caused by injuries to the tear glands. Fungal and bacterial infections also cause excessive discharge.

    Effects

    • The Dog Health at Lowchens Australia website indicates that the type and thickness of the discharge often helps veterinarians diagnose the condition. Dogs with keratoconjunctivitis sicca, bacterial or fungal infections, have a thick yellowish-green discharge, while the discharge caused by conjunctivitis varies depending on its cause. Serious infections can lead to corneal ulceration and vision loss.

    Prevention/Solution

    • A veterinarian will evaluate the dog's condition and perform tests to determine the cause of the infection. Keratoconjunctivitis sicca is treated with cyclosporine ophthalmic ointment, according to Pet Education. Conjunctivitis is treated with antibiotic and hydrocortisone eye drops, while bactericidal and fungicidal solutions are used to treat infections.