What Is Cherry Eyes in Dogs?

Cherry eye in dogs is when your pup has a red, swollen lump in the corner of his or her eyelid. It can sometimes occur overnight and can seem alarming. While it may look painful or even like an emergency, this condition is surprisingly common in many dog breeds.

The good news is that cherry eye is usually treatable, and with quick veterinary care, most dogs recover well and go on to live happy, healthy lives. Cherry eye is also one of the most recognizable eye conditions in dogs which makes early intervention easier.

What Is Cherry Eye in Dogs?

Cherry eye in dogs is when the gland of a dog’s “third eyelid” slips out of its normal position and becomes visible as a red or pink, round mass in the inner corner of a dog’s eye. The third eyelid, sometimes called the nictitating membrane, is an important structure that helps protect a dog’s eyes and produces a significant portion of your dog's tears.

Normally, the gland is held in place by connective tissue. If those attachments weaken or stretch, the gland can prolapse, creating the characteristic "cherry-like" appearance that gives the condition its name.

Although cherry eye may not always cause severe pain, it should never be ignored. The exposed gland can become irritated, inflamed, and less effective at producing tears if left untreated.

What Causes Cherry Eye?

The exact cause of cherry eye isn't always known, but genetics play a major role. Many veterinarians believe that some dogs inherit weaker connective tissue that holds the gland in place, making it prolapse more likely.

Cherry eye most commonly develops in young dogs, typically before they are two years old, although it can occur at any age. Puppies that have weak eye ligaments that are not fully developed may get cherry eye. It may affect one eye initially, but many dogs eventually develop cherry eye in the other eye as well.

Other potential causes of cherry eye include eye injuries, chronic inflammation in the eyes, usually cause by an infection or allergies. 

Unlike infections, cherry eye isn't contagious and isn't caused by poor hygiene or anything a pet parent did wrong.

Which Dog Breeds Are Most Prone to Cherry Eye?

While any dog can develop cherry eye, certain breeds are much more susceptible due to their facial structure and genetics.

Breeds commonly affected include Bulldogs, Beagles, Cocker Spaniels, Boston Terriers, Lhasa Apsos, Shih Tzus, Pekingese, Bloodhounds, Mastiffs, Saint Bernards, and Neapolitan Mastiffs. Mixed-breed dogs with ancestry from these breeds may also have an increased risk.

Because these breeds are predisposed to cherry eye, pet parents should become familiar with the early signs so they can seek treatment promptly.

Symptoms of Cherry Eye in Dogs

The most obvious symptom is a bright pink or red mass that appears in the inner corner of your dog's eye. Additional symptoms may include:

• A round, red or pink swelling in the corner of one or both eyes

• Excessive tearing or watery eyes

• Mild eye discharge

• Pawing or rubbing at the eye

• Squinting or blinking more than usual

• Eye irritation or redness

• Dryness if tear production becomes reduced

• Mild swelling around the affected eye

Some dogs seem completely comfortable, while others become irritated because the exposed gland rubs against the eyelid or collects debris.

Is Cherry Eye Painful For Your Dog?

Cherry eye itself isn't usually extremely painful, but it can certainly be uncomfortable. The exposed gland is vulnerable to drying out, inflammation, and irritation from dirt, dust, and rubbing.

If left untreated, chronic inflammation can damage the gland over time, reducing tear production and increasing the risk of dry eye (keratoconjunctivitis sicca), which is a lifelong condition requiring ongoing care.

Because dogs often rub at irritated eyes, secondary scratches or ulcers on the cornea can also develop if the condition persists.

How Is Cherry Eye Diagnosed?

A veterinarian can usually diagnose cherry eye during a physical eye examination. The appearance is often distinctive enough that additional testing isn't necessary.

However, your veterinarian may perform a complete ophthalmic exam to rule out other eye problems, check tear production, and ensure there isn't an underlying injury or infection contributing to your dog's symptoms.

How Is Cherry Eye Treated?

Treatment depends on how long the gland has been prolapsed and the degree of inflammation.

In very recent cases, your veterinarian may prescribe anti-inflammatory eye medications to reduce swelling. Occasionally, the gland may temporarily return to its normal position, but this rarely provides a permanent solution.

Surgery is considered the gold standard treatment for most dogs. Rather than removing the gland, modern veterinary ophthalmologists typically reposition it and secure it back into its normal location. This preserves its important role in tear production and can stop it from reoccurring.

What Happens During Cherry Eye Surgery?

Cherry eye surgery is typically performed under general anesthesia. The veterinarian carefully places the prolapsed gland back into its proper position using specialized surgical techniques that create a pocket or anchor the gland beneath surrounding tissues.

Most procedures are relatively straightforward, and many dogs return home the same day.

Following surgery, dogs usually wear an Elizabethan collar (cone) to prevent rubbing the eye while it heals. Eye medications and activity restriction is usually recommended for a few weeks during recovery.

Can Cherry Eye Go Away on Its Own?

In rare cases, the gland may temporarily slip back into place, but this usually doesn't last. Once the supporting tissue has weakened, the gland often prolapses again.

Waiting too long can allow the inflammation to worsen, making surgical repair more difficult and increasing the risk of permanent damage to the gland.

For this reason, it's best to schedule a veterinary examination as soon as you notice the characteristic red swelling.

Can Cherry Eye Be Prevented?

Unfortunately, cherry eye cannot usually be prevented because it is largely inherited. However, responsible breeding practices may help reduce its occurrence in predisposed breeds, but individual pet parents have little control over whether it develops.

The best approach is early recognition and prompt treatment. Addressing the problem quickly helps preserve normal tear production and reduces the risk of long-term complications.

Routine wellness exams also give your veterinarian an opportunity to monitor your dog's eyes for any changes, especially if they belong to a high-risk breed.

Will My Dog Live Normally After Cherry Eye?

The prognosis for dogs with cherry eye is generally very positive. Most dogs recover fully after surgical correction and do not experience any lasting vision problems. While a small percentage of dogs may have the condition recur, repeat surgery is often successful if needed.

With timely treatment and proper follow-up care, most dogs continue enjoying normal activities without any impact on their quality of life.

Final Thoughts

Cherry eye in dogs may look dramatic, but it's a highly treatable condition when addressed early. Although the bright red swelling can be startling to see, preserving the third eyelid gland is important because it plays a vital role in keeping your dog's eyes healthy and properly lubricated.

If you notice a pink or red lump developing in the corner of your dog's eye, don't wait to see if it disappears on its own. An immediate visit to your veterinarian can help protect your dog's vision, reduce discomfort, and ensure the best possible outcome.