While more common in dogs than in cats, cherry eye is still a possibility. It’s a condition characterized by a small, pink or red bulge poking out near the inner corner of the eye. That bulge is the tear gland, an essential part of tear production.
Aside from its strange-looking appearance, it’s also uncomfortable and painful. In this blog, we’re going to talk all about what cherry eye in cats is, from what causes it to how it’s prevented.
Key Takeaways
Cherry eye in cats occurs when the third eyelid gland prolapses, exposing it to injury, irritation, and infection.
It’s caused by weak connective tissues, genetics and breed-related factors, inflammation, injuries, and infections.
Surgical correction is the primary treatment for cherry eye in cats.
What Is Cherry Eye in Cats?
Cherry eye is a term used to describe the red, swollen, and round mass that can be found in the corner of the cat’s eye. This is actually the third eyelid gland.
The third eyelid, or nictitating membrane, serves as a protective layer that also helps moisturize the eyes. This membrane houses a gland that produces a significant portion of the eye's tear film. Normally, it remains tucked away in the inner corner of the eye.
But in cherry eye, the gland pops out of its normal position, exposing it to infection and injury and causing it to lose function.
What Causes Cherry Eye in Cats?
The main factors include weak connective tissue, genetics, inflammation, and trauma.
Weak Connective Tissue
The most widely accepted explanation is that cherry eye in cats results from a structural weakness in the connective tissues that hold the tear gland of the third eyelid in place. When these tissues fail, the gland slips out of place and gets exposed.
This can be congenital and can also be influenced by the elasticity of the cat’s eye structures.
Genetic and Breed Predisposition
Another suspected cause is genetics. Some breeds, namely Persians, Burmese, and Himalayans, are susceptible to cherry eye due to their unique facial structures. This is because the unique facial conformation strains or causes pressure on the eye area, weakening the tissue.
This puts strain on the third eyelid, resulting in reduced stability.
Inflammation or Eye Trauma
Another potential trigger for gland prolapse is eye inflammation. Conditions such as feline conjunctivitis can cause swelling around the third eyelid, compromising structural integrity, potentially leading to cherry eye.
Similarly, trauma to the eye or surrounding area can increase the risk of the tear gland popping out. This means that, aside from accidents and animal fights, even the slightest scratches can contribute to feline cherry eye.
What Are the Symptoms of Feline Cherry Eye?
A common sign is the visible red bulge, with other symptoms indicating irritation and discomfort.
Visible Red or Pink Lump. The clearest sign of cherry eye in cats is the fleshy, red, or pink mass that appears on the corner of the eye. This resembles a small cherry, which may worsen over time.
Excessive Tearing or Eye Discharge. Affected cats may produce more tears than usual, resulting in watery eyes. In some cases, a thick discharge can be present, which indicates secondary eye infections.
Squinting or Frequent Blinking. As the gland becomes exposed, it’s susceptible to allergens, contact, and infections, which may prompt cats to squint or blink more.
Pawing or Rubbing at the Eye. Like with squinting, the irritation and inflammation may make cats paw or rub their eyes. Some may even use the surrounding furniture.
Swelling or Inflammation Around the Eye. In some cases, the surrounding tissues can appear swollen and inflamed, especially if the tear gland is infected.
Behavioral Changes. Cats with cherry eye will appear visibly stressed, uncomfortable, and in pain. Some will be more withdrawn and less playful.
How Do Vets Diagnose Cherry Eye in Cats?
Our pet ophthalmologists start with a physical exam of your cat’s eyes, where we check for any of the common symptoms. The process is mostly straightforward. If we notice a pink or red bulge, we can almost always suspect it’s cherry eye.
Other laboratory tests will be done to confirm the preliminary diagnosis, discover the cause, and check for other issues.
Eye Stain Test
If your cat has been pawing or rubbing its eyes frequently, an eye staining test will be performed. This test uses an orange dye that’s applied to the eyes. Under a special blue light, any damage or scratches on the cornea will glow bright green, helping us know what to treat.
Schirmer Tear Test
Another test is the Schirmer tear test. Dry eye is a common secondary issue in cats with cherry eye. This test helps confirm it by using a small strip of paper under the lower eyelid to measure tear production.
Other Tests
To rule out other conditions and check for additional issues, we may perform additional tests. These include checking for conditions such as tumors, Horner’s syndrome, and Haws syndrome.
How Is Cherry Eye in Cats Treated?
The main treatment methods for cherry eye in cats include surgery, medical management, and supportive care.
Surgery
Surgery is the primary cherry eye cat treatment. The goal is to reposition the prolapsed gland without removing it so that the eye continues to produce tears.
The most common procedure is the pocket technique. In this technique, our vets create a small pocket for the gland to fit into. The opening is sutured, securing the tear gland, keeping its functionality, and hiding it from plain sight.
In some cases, we may also use a surgical stitch to secure the gland back to its proper location.
Medical Management
In mild cases, medicines can be used to reduce swelling and discomfort.
Anti-Inflammatory Eye Drops. These can help shrink the gland, but this only works temporarily.
Antibiotics. They can be used if there are any signs of bacterial infections.
Lubricating Eye Drops. These are used to keep the eyes moisturized.
Medical treatment is most effective as a short-term or supportive measure, often used before or after surgery to manage symptoms and promote healing.
Supportive Care
It’s helpful to create a place where your cat can comfortably rest and recover. You can also make use of prescribed eye drops, warm compresses, and E-collars to prevent your cat from scratching its eyes. During this time, monitor your cat’s eyes for any signs of complications, which can include:
Swelling
Signs of pain
Re-protrusion of the gland
Suture complications
Infection
Vet Tips: How to Prevent Cherry Eye in Cats?
While there is no definite way to prevent cherry eye in cats, there are ways to support your cat’s eye health.
Schedule Regular Vet Visits
Routine checkups are a great way to detect any early signs of eye issues, including cherry eye. Our vets can recommend home care techniques to protect your cat’s eyes.
Clean Your Cat’s Eyes
In addition to regular grooming, it’s essential to wipe your cat’s eyes with a soft, damp cloth. This removes dirt and debris that can cause them to scratch and rub their eyes.
Watch Out for Your Cat
If your cat is genetically predisposed to cherry eye, it’s worth paying extra attention to any signs of swelling, irritation, especially in kittens and young cats. Also, it’s good to protect their eyes from accidents, fights with other cats, and sharp objects.
“A cat’s eyes offer a glimpse into its health. Make sure to listen to what they’re trying to say.”
- Dr. Nenad Misura
Final Thoughts
While cherry eye is less common in cats than in dogs, it can still affect our best friends. Fortunately, this eye condition is treatable, especially when addressed early on. With the right care, most cats with cherry eye recover well and return to their happy, healthy selves.
Frequently Asked Questions
Does cherry eye in cats go away on its own?
No, this condition doesn’t go away on its own and requires veterinary intervention. The prolapsed gland needs to be surgically repositioned.
Is this painful for cats?
Cherry eye in cats is generally uncomfortable rather than painful. However, it does cause significant irritation, dryness, and inflammation.
Can cats live with this condition?
Yes, cats can live with cherry eye, but this shouldn’t be left completely untreated. The exposed gland can become inflamed, infected, or damaged, causing more problems long-term.
How long does recovery take?
After surgery, it takes about 7-14 days for cats to recover. During this period, cats must wear an E-collar, and activity should be restricted.
Can cherry eye in cats come back after surgery?
Yes, recurrence is possible. It usually happens when the stitches break down or if the tissue is not secured enough.
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