What are the Signs of Pink Eye in Cats?

Conjunctivitis, or pink eye, is a condition that causes a noticeable inflammation to the outermost layer of the eye. Pink eye in cats is very common and in some cases can become a chronic condition. As with people, this condition can cause a reddening of the white part of the eye, as well as a dulling of the iris, discharge, and persistent rubbing or scratching. In some cases, pink eye may also be accompanied by an upper respiratory tract infection.

Some of the signs of pink eye in cats are obvious, while others are not. For instance, the color of the affected eye can be slightly altered; the lining and white portion of the eye may become pink or red, the iris may appear dull or muddy, and the cornea may become cloudy due to erosion or an ulcer. Frequent squinting or a persistent pawing at the eyes may also help to indicate a problem. In many cases, the eye may also become encrusted with a watery discharge. Sometimes this discharge is clear, but it can also be yellow, gray, green, or a deep orange-red hue.

Some of the less obvious signs of pink eye in cats can include an inflammation of the nictitating membrane, or the third eyelid, and frequent sneezing. Although inflammation of the third eyelid may not be immediately noticeable, in some cases the eyelid can become so swollen that it begins to protrude and partially cover the eye. It may also begin to adhere to the conjunctiva, making it more visible. There are many reasons why a cat sneezes. Sneezing during a bout of pink eye may be the result of another underlying illness, such as an upper respiratory infection.

Pink eye in cats is not usually life threatening, but if left untreated, it can cause blindness. After ruling out other possible illnesses, a veterinarian will typically do specific blood tests to see if the condition was brought about by a recent, unrelated infection, or take a swab of the conjunctiva to help identify a current infection. Once the cause has been identified, the veterinarian will choose a method of treatment. Treatments usually consist of either antibiotics or antivirals in the form of ointments, eye drops, or injections that are made under the conjunctiva. In some cases, treatments in pill or liquid form may also be required.

Early signs of pink eye, or conjunctivitis, in cats include redness and swelling of the conjunctiva, the membrane covering the white part of the eye and lining the eyelids. Cats may also exhibit increased blinking, squinting, or a tendency to keep the eye partially or fully closed. Discharge, which can be clear or colored, is another common symptom.

Yes, if left untreated, pink eye in cats can lead to more serious conditions. Secondary infections can occur, potentially causing corneal ulcers or deeper eye infections. Chronic conjunctivitis might also be indicative of underlying systemic diseases, such as feline immunodeficiency virus (FIV) or feline leukemia virus (FeLV), which require prompt veterinary attention.

Veterinarians diagnose pink eye in cats through a thorough eye examination, which may include a fluorescein stain test to check for corneal ulcers. They may also recommend additional tests, such as a Schirmer tear test to measure tear production or conjunctival swab cultures, to identify bacterial or viral causes and rule out other eye diseases.

Treatment for pink eye in cats depends on the underlying cause. Bacterial infections are typically treated with antibiotic eye drops or ointments. Viral causes may require antiviral medications, while allergic conjunctivitis might be managed with corticosteroids or antihistamines. Artificial tears can also help soothe the eyes. Always consult a veterinarian for the appropriate treatment plan.

Pink eye in cats caused by certain viruses or bacteria can be contagious to other cats. However, the specific strains affecting cats are generally not transmissible to humans. It's important to practice good hygiene, such as washing hands after handling an infected cat, to prevent the spread of the condition to other pets.

Preventing pink eye in cats involves maintaining good ocular hygiene, avoiding irritants like smoke or dust, and managing stress, which can weaken the immune system. Regular vaccinations and keeping your cat indoors can reduce exposure to infectious agents. Additionally, promptly addressing any eye injuries or symptoms can prevent the development of conjunctivitis.