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Eye Discharge in Cats

Your cat’s eyes, usually clear and bright, are looking a little gooey. She might be pawing at them, or rubbing her face against the sofa or on the rug. Clearly, something’s wrong.

Anything from a simple cold to a serious illness could be be causing your cat’s eye discharge. Learn a few of the more common causes of eye discharge, when to see a vet, and what you can do at home to help your feline friend.

Eye Discharge Causes

A healthy cat’s eyes should be bright and clear.

Eye problems can bring out another cat entirely, one who paws at his eyes, squints, or blinks excessively. Because eye problems can lead to devastating consequences -- including surgery or blindness -- always talk to your vet when you notice your cat has irritated eyes. A few common reasons for cat eye discharge include:

  • Feline upper respiratory infections. A frequent cause of eye discharge in cats, these can include viruses such as feline calicivirus, a contagious respiratory disease, pneumonitis or rhinotracheitis, bacteria, and protozoa. Symptoms can be mild or progress to something very serious and may include a sticky, pus-like eye discharge.
  • Conjunctivitis (pink eye). An inflammation of the light pink lining around your cat’s eye, conjunctivitis can cause one or both of your cat’s eyes to look red and swollen, be light-sensitive, and have clear, teary or thick, mucus eye discharge.
  • Corneal disorders. A cat’s cornea can become inflamed, injured, or ulcerated. The result may be cloudiness, excessive blinking, inflammation, and increased tear production.
  • Watery, tearing eyes (epiphora). Blocked tear ducts, an overproduction of tears, allergies, viral conjunctivitis, and more can be behind your cat’s abnormal tearing.
  • Uveitis. An inflammation of the internal structures of the eye, trauma, cancer, immune problems or infections can cause the serious, often painful inflammation of uveitis.
  • Dry eye (keratoconjunctivitis sicca). A chronic lack of tear production, dry eye can lead to an inflamed cornea, red eyes, and if left untreated, blindness. Because the watery portion of tears is missing, a yellow, gooey eye discharge can result.
  • Other eye discharge causes include feline infectious peritonitis, allergies, something lodged in the eye, or third eyelid problems.

 

Eye Discharge Treatments

Because so many conditions can lead to eye discharge in cats, you really need to talk to your veterinarian before trying any eye discharge treatments on your cat.

Depending on what your veterinarian finds, treatment for cat eye discharge might include:

  • Feline upper respiratory infections. Specific treatments depend on the cause of the infection as well as how serious it is and may include eye medications, antibiotics, decongestants, and fluids.
  • Conjunctivitis. Pollen, dust, weeds, or other irritants can cause conjunctivitis, which may be treated with antibiotic ointments, many of which have a local anesthetic to reduce pain. Conjunctivitis with fever, diarrhea, and respiratory distress can point to potentially fatal feline infectious peritonitis, though this isn’t very common.
  • Corneal disorders. Treatment depends on what’s troubling your cat’s cornea, but may include keeping kitty’s eyes clean, antibiotic eye ointment or drops, removing loose corneal tissue, cauterization, or surgery.
  • Watery, tearing eyes. Under general anesthesia, your vet may use plain water or saline to flush your cat’s blocked tear duct. If there's an infection, antibiotic eye ointment or drops may be needed.
  • Uveitis. The right treatment depends on what’s causing your cat’s uveitis, though that’s often hard to diagnose. Care may include eye ointment or drops to control inflammation and pain.
  • Feline calicivirus. Secondary bacterial infections, which can cause pneumonia and other serious issues, are common with calicivirus, so always call your vet if you suspect your cat has this disease. Treatment may include symptom control, antibiotics for secondary infections, and good nursing.
  • Dry eye. Many things can cause dry eye, from upper respiratory infection to distemper. Treatment can include eye drops or ointments, immune-suppressing drugs, antibiotics, or artificial tears.

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