Your Free Guide to Cherry Eye in Dogs

Understanding Cherry Eye in Dogs: What It Is and Why It Happens

Cherry eye is a common eye condition in dogs that occurs when the tear gland behind the third eyelid becomes inflamed and protrudes outward. The condition gets its name because the swollen tissue often looks like a bright red cherry sitting in the corner of your dog's eye. While the appearance can be alarming to pet owners, understanding what causes this condition can help you recognize it early and seek appropriate veterinary care.

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The third eyelid, also called the nictitating membrane, normally stays hidden beneath your dog's lower eyelid. This eyelid serves an important function by helping to produce tears and protect the eye surface. When the ligament that holds the tear gland in place weakens or tears, the gland can slip out of position and swell up, creating the characteristic cherry-like appearance.

Cherry eye occurs when the gland's attachment point fails, which can happen for several reasons. Some dogs are born with weaker ligaments that make them more prone to this condition. Other times, it develops suddenly after trauma to the eye area or from persistent rubbing. The exact cause isn't always clear, but genetics play a significant role in determining which dogs are at higher risk.

Certain dog breeds show higher rates of cherry eye than others. Bulldogs, Beagles, Cocker Spaniels, Poodles, Boxers, and Shih Tzus experience this condition more frequently than other breeds. Dogs under two years old are more commonly affected, though it can develop at any age. Some dogs develop cherry eye in one eye first, and later experience it in the other eye as well.

Practical Takeaway: Cherry eye is a treatable condition caused by a weakened ligament in the eye structure. Recognizing it early—when you see a red swelling in the corner of your dog's eye—allows you to discuss treatment options with your veterinarian before any complications develop.

Recognizing the Signs and Symptoms of Cherry Eye

The most obvious sign of cherry eye is a red or pink swelling appearing in the inner corner of your dog's eye, near the nose. This swelling typically looks like a small cherry or pea-sized mass and may appear suddenly or develop gradually over days. The affected eye may look different from the other eye, making comparison useful when observing your dog.

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Dogs with cherry eye often experience eye discomfort, which they may show through various behavioral changes. Your dog might blink more frequently than usual or keep the affected eye partially closed. Some dogs rub their eye with their paw or rub their face along the ground, carpet, or furniture in an attempt to relieve the irritation. This rubbing behavior can actually make the condition worse by causing additional inflammation.

Additional symptoms may include redness around the white part of the eye, mild discharge from the affected eye, or swelling around the eyelids. Some dogs experience excessive tearing from the affected eye, creating a wet appearance around that area. In other cases, your dog may seem to have reduced tear production, which can lead to dryness and further irritation.

Most dogs with cherry eye don't experience severe pain, but the condition can be uncomfortable. Your dog may show signs of mild irritation but continue with normal activities. However, if you notice your dog squinting, keeping the eye closed, or showing signs of significant discomfort, this warrants prompt veterinary attention. Additionally, if the eye begins to show discharge that appears greenish or yellowish, this could indicate a secondary infection has developed.

The condition can affect one or both eyes. If your dog develops cherry eye in one eye, there's about a 50% chance it will eventually develop in the other eye as well. Some dogs experience symptoms in one eye for months or even years before the condition appears in the second eye.

Practical Takeaway: Watch for a red swelling in the inner corner of your dog's eye, increased blinking, eye rubbing, or excessive tearing. These signs mean you should contact your veterinarian for an examination to confirm whether your dog has cherry eye and discuss treatment options.

Diagnosis and What Your Veterinarian Will Do

Diagnosing cherry eye is usually straightforward because the condition has such a distinctive appearance. Your veterinarian will perform a physical examination of your dog's eye and will likely be able to identify cherry eye immediately based on the characteristic red swelling in the tear gland location. No special testing or imaging is typically required to confirm a diagnosis of uncomplicated cherry eye.

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During the examination, your veterinarian will assess the overall health of the eye and check for any complications. They will look at the eye's surface to determine if any scratches or damage to the cornea have occurred from your dog's rubbing. They may use a special dye called fluorescein to highlight any corneal damage that might not be visible to the naked eye. This helps determine whether the cherry eye has caused any secondary problems.

Your veterinarian will also examine the white part of the eye and the eyelids to check for signs of infection or additional inflammation. They will likely ask you questions about when you first noticed the swelling, whether your dog has been rubbing at the eye, and whether the dog has experienced any trauma to the eye area. Information about your dog's breed is also relevant since certain breeds are predisposed to cherry eye.

It's important to mention if your dog has had any eye problems in the past or if there's a family history of eye issues. Your veterinarian will also want to know about your dog's overall health status and any medications your dog is currently taking. This complete picture helps your veterinarian recommend the most appropriate treatment approach for your specific dog.

In some cases, your veterinarian might recommend measuring tear production using a test called the Schirmer tear test. This simple test involves placing a thin strip of paper under the eyelid to measure how much tears your dog's eye is producing. Since the tear gland is responsible for producing a significant portion of the eye's tears, checking tear production helps your veterinarian assess the overall health of the tear system.

Practical Takeaway: Your veterinarian can diagnose cherry eye through a physical examination. Come prepared to describe when you first noticed the swelling and whether your dog has been showing signs of eye discomfort like rubbing or excessive blinking.

Treatment Options: Surgical and Conservative Approaches

The primary treatment for cherry eye is surgical repair, which aims to return the tear gland to its normal position and secure it there so it won't prolapse again. The most common surgical technique is called a tacking procedure, where the veterinarian makes a small incision and uses stitches to reattach the ligament holding the tear gland in place. This procedure is performed under general anesthesia and typically takes 20 to 30 minutes.

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Another surgical approach is the pocket technique, where the veterinarian creates a small pocket of tissue and tucks the prolapsed gland into it, securing it with stitches. This method has become increasingly popular because it tends to have a lower recurrence rate than some other techniques. The success rate for surgical repair of cherry eye ranges from 85% to 95%, depending on the specific surgical technique used and the individual dog's healing response.

In the past, some veterinarians simply removed the prolapsed tear gland through a procedure called gland removal or conjunctival excision. However, this approach is no longer recommended as standard treatment because the tear gland is responsible for producing about one-third of the tears the eye needs. Dogs that have the gland removed often develop dry eye later in life, which can lead to chronic discomfort and potential vision problems. Modern veterinary practice focuses on preserving the tear gland through repair rather than removal.

Conservative or non-surgical management may be considered in certain situations, though it typically provides only temporary relief. Your veterinarian might recommend anti-inflammatory eye drops or ointments to reduce swelling and discomfort while you consider your options. Some owners apply warm compresses to the affected eye several times daily, which can help reduce inflammation. However, conservative treatment doesn't address the underlying problem of the weakened ligament, so the condition usually returns or worsens over time.

The decision between surgical and conservative approaches should be made in consultation with your veterinarian. Factors to consider include your dog's age and overall health status, whether the condition is affecting your dog's quality of life, and whether there are any complications like corneal damage. Most veterinarians recommend surgical repair for dogs showing symptoms, as