Eye Discharge in a Cat

Ocular, or eye, discharge in cats is a symptom of a disease or condition. A small amount of discharge observed right after the cat has awoken is normal, but if the discharge is discolored, is reoccurring or lasts for a prolonged period of time, it is a sign of a more serious health problem. Discharge accompanied by swelling should be seen by a medical professional immediately to avoid further injury to the eye.

  1. Description

    • Eye discharge can develop slowly or suddenly, and vary in color, thickness and amount, depending upon the cause. Its consistency can range from thin and watery to thicker and mucus-like, with colors ranging from gray, yellow or green. A discharge due to injury or illness shouldn't be confused with epiphora, or excessive tearing, in cats, which usually occurs due to an injury with the tear ducts.

    Cause

    • Common causes of discharge are usually eye-related illnesses and diseases, such as glaucoma and conjunctivitis. Inflammation can cause a discharge, and can involve the cornea (keratitis), eyelids (blepharitis) or the iris and blood vessels inside the eye (uveitis). Infections and corneal ulcers are also common culprits.

    Diagnosis

    • Diagnosing the cause of the discharge usually involves a thorough examination of the eyes to check for injury or damage. A Schirmer tear test may be performed to measure the amount of tear production. Scratches and ulcers can be seen by placing a few drops of orange stain into the eyes, as the color will outline the damage once the eye is rinsed. Blood tests are conducted to search for infections.

    Treatment

    • Proper treatment depends upon the underlying cause of the discharge. In most cases, topical drops and ointments are effective in clearing up infections, and oral antibiotics are administered to prevent a resurgence of the problem. Surgery may be necessary to correct a physical problem, such as an injured third eyelid or cataracts due to diabetes.

    Home Care

    • Some discharge from the eyes is normal in cats, especially after waking up or sitting at open windows. Gently wipe the eyes with a warm moist cloth and take note of how often the discharge occurs, including what activities your cat has undertaken before it was noticed. Human eye drops must never be used on a cat, but saline contact lens solution may be used as a very temporary measure to flush out your cat's eyes.