Last updated: May 6, 2026

Dog Cherry Eye: What It Is, Causes & Treatment Options

If you’ve ever noticed a red, fleshy mass bulging from the corner of your dog’s eye, you’ve likely witnessed a condition known as cherry eye. While the sight can be alarming, cherry eye in dogs is a relatively common condition — especially among certain breeds — and is highly treatable when addressed promptly. Understanding what causes cherry eye, recognizing the symptoms, and knowing your treatment options can help you act quickly and protect your dog’s long-term eye health.

In this guide, we’ll cover everything dog owners need to know about cherry eye, from its underlying anatomy to surgical treatment, recovery, and the risks of leaving it untreated.

What Is Cherry Eye in Dogs?

Cherry eye is the common name for a prolapse of the third eyelid gland. Dogs have a third eyelid — a thin, protective membrane that sits in the inner corner of each eye. This third eyelid contains a gland that is normally hidden from view, tucked behind the membrane.

When the connective tissue holding this gland in place weakens or breaks down, the gland pops out and becomes visible as a round, red or pink mass at the inner corner of the eye. Because of its swollen, cherry-red appearance, the condition earned the nickname “cherry eye.”

Cherry eye can occur in one eye or both. Dogs who develop cherry eye in one eye have roughly a 40% chance of developing it in the other eye as well.

Which Gland Prolapses in Cherry Eye?

The gland that prolapses is the gland of the third eyelid, sometimes called the nictitans gland. It is responsible for producing approximately 30 to 50 percent of the tear film that keeps the eye moist, lubricated, and protected from debris and infection.

The third eyelid itself acts as a natural windshield wiper, sweeping across the eye to distribute tears and remove particles. This is why preserving this gland — rather than removing it — is so important during treatment. Without it, dogs are at high risk of developing dry eye (keratoconjunctivitis sicca), a chronic condition that requires lifelong management.

Causes of Cherry Eye in Dogs

The exact cause of cherry eye is not fully understood, but it is widely believed to result from a weakness in the connective tissue that anchors the third eyelid gland in place. When this tissue is congenitally weak or underdeveloped, the gland can slip out with relatively little provocation.

Several factors are thought to contribute:

• Genetic predisposition — Cherry eye is strongly associated with certain breeds, suggesting a hereditary weakness in the connective tissue that holds the gland in place.
• Congenital weakness — Many cases appear in puppies and young dogs under the age of two, indicating that the anchoring tissue was never fully developed from birth.
• Inflammation or irritation — Eye infections, allergies, or chronic irritation can cause the gland to swell, potentially contributing to its displacement.
• Facial and skull structure — Brachycephalic breeds (dogs with short, flat faces) tend to have shallower eye sockets, which may place additional strain on the structures supporting the third eyelid.

It is important to note that cherry eye is not caused by injury or trauma in the vast majority of cases. It is primarily a structural issue rather than something that develops from external damage.

Dog Breeds Prone to Cherry Eye

While cherry eye can technically occur in any dog, certain breeds are significantly more predisposed to the condition. If you own or are considering adopting one of these breeds, it’s helpful to be aware of the possibility so you can catch it early. You can learn more about breed-specific health traits in our dog breeds directory.

Breeds most commonly affected by cherry eye include:

• English Bulldog — One of the most frequently affected breeds due to their brachycephalic structure and shallow eye sockets.
• French Bulldog — Similarly predisposed because of their flat facial structure.
• Cocker Spaniel — Both American and English Cocker Spaniels have a notably higher incidence of cherry eye.
• Beagle — A commonly affected breed, particularly in puppies under one year of age.
• Bloodhound — Loose facial skin and heavy eyelids contribute to gland prolapse.
• Boston Terrier — Another brachycephalic breed with elevated risk.
• Shih Tzu — Prone to eye conditions due to their prominent eyes.
• Lhasa Apso — Shares similar eye structure vulnerabilities with the Shih Tzu.
• Cavalier King Charles Spaniel — Known to develop cherry eye, sometimes bilaterally.
• Neapolitan Mastiff — Loose skin around the face and eyes increases risk.
• Shar-Pei — Wrinkled skin extends to the eye area, increasing risk.
• Great Dane — Among the giant breeds that can develop cherry eye.

Most cases of cherry eye appear in dogs under two years of age, though it can occasionally develop in older dogs. If you’re looking to bring a new dog into your family and want to understand breed-related health considerations, explore the adoptable pets on our adoption page.

Symptoms of Cherry Eye in Dogs

Cherry eye is one of the more visually obvious conditions, making it relatively easy to identify. Here are the key symptoms to watch for:

• Red or pink mass in the eye corner — The most distinctive sign is a round, smooth, reddish lump protruding from the inner corner of the eye, near the nose. It may be small at first and grow larger over time.
• Swelling around the eye — The tissue surrounding the prolapsed gland may appear puffy or inflamed.
• Excessive tearing — The affected eye may produce more tears than normal as the eye attempts to compensate for the disrupted gland.
• Eye discharge — You may notice a mucus-like or watery discharge from the affected eye.
• Pawing or rubbing at the eye — Your dog may try to relieve discomfort by rubbing the eye with their paw or against furniture and carpet.
• Dry eye symptoms — If the prolapsed gland has been exposed for a prolonged period, it may not function properly, leading to dryness, redness, and irritation of the eye surface.
• Intermittent appearance — In the early stages, the gland may pop in and out of position. You might see it one day and not the next. This does not mean the problem has resolved — the gland will almost always prolapse again.

Cherry eye itself is not typically a painful emergency, but the longer the gland remains prolapsed and exposed, the greater the risk of secondary complications including infection, corneal damage, and impaired tear production.

Home Care: Is Tucking Cherry Eye Back In Safe?

Many dog owners ask whether they can gently push the prolapsed gland back into place at home. While in some early cases the gland can be temporarily repositioned with gentle pressure and a warm, damp cloth, this approach comes with significant caveats.

• It is almost always temporary. Even when the gland can be manually repositioned, it will very likely pop back out again — often within hours or days. The underlying connective tissue weakness has not been repaired.
• You risk causing further irritation. Handling the delicate eye tissue without proper technique or sterile conditions can introduce bacteria or cause micro-trauma to the gland and surrounding structures.
• It does not replace veterinary treatment. Manual repositioning is not a cure. Every credible veterinary source recommends professional evaluation and, in most cases, surgical correction.
• Gentle warm compresses may help temporarily. If you cannot get to a vet immediately, applying a clean, warm, damp cloth to the eye for a few minutes can help reduce swelling and may allow the gland to slip back temporarily. Ensure your hands are clean and be extremely gentle.

While gentle home care can provide short-term relief, it should never be considered a substitute for professional veterinary assessment. If your dog develops cherry eye, schedule a vet appointment as soon as possible.

Surgical Treatment for Cherry Eye

Surgery is the gold standard treatment for cherry eye in dogs. The goal is to reposition the prolapsed gland and secure it permanently while preserving its function. Removing the gland was once common but is now strongly discouraged because of the high risk of subsequent dry eye.

There are two primary surgical techniques:

Pocket Technique (Morgan Pocket or Envelope Technique)

This is the most widely used and recommended surgical method. The surgeon creates a small pocket or envelope in the tissue surrounding the gland, tucks the gland back into its proper position, and sutures the pocket closed over the gland. This effectively buries the gland beneath the conjunctival surface, holding it securely in place while allowing it to continue producing tears normally. Success rates for the pocket technique are generally reported between 85 and 95 percent.

Tacking Technique (Anchoring or Fixation)

In this approach, the surgeon uses one or more sutures to anchor the gland directly to the deeper periosteal tissue (the connective tissue lining the bone of the eye socket). This physically prevents the gland from slipping out of position. The tacking technique is sometimes used in combination with the pocket technique for cases where extra security is needed. Success rates are comparable to the pocket technique when performed by an experienced surgeon.

Some veterinary ophthalmologists combine both techniques for breeds with very loose connective tissue. Surgery is performed under general anesthesia and usually lasts 20 to 45 minutes per eye. Costs vary by location and surgeon but generally range from $300 to $1,500 per eye.

Recovery After Cherry Eye Surgery

Recovery is generally smooth but requires diligent aftercare. Here is what to expect:

• Elizabethan collar (cone). Your dog will need to wear a cone or protective collar for 10 to 14 days after surgery. This is non-negotiable — even one episode of pawing or rubbing at the surgical site can disrupt the sutures and cause the gland to re-prolapse.
• Medicated eye drops or ointment. Your vet will prescribe antibiotic and anti-inflammatory eye drops to prevent infection and reduce swelling. These are typically administered two to four times daily for one to two weeks.
• Swelling and redness. It is completely normal for the eye to appear swollen, red, and slightly puffy for the first week after surgery. This should gradually improve each day.
• Restricted activity. Limit your dog’s physical activity for at least one to two weeks. Vigorous play, running, and roughhousing can increase blood flow to the head and put pressure on the healing tissue.
• Follow-up appointment. Most vets will schedule a recheck 10 to 14 days after surgery to assess healing and, if necessary, remove any non-absorbable sutures.
• Full recovery timeline. Most dogs are fully healed within three to four weeks, though mild residual swelling can persist for up to six weeks in some cases.

The key to success is following your vet’s aftercare instructions precisely and preventing your dog from interfering with the healing eye.

Can Cherry Eye Recur After Surgery?

Unfortunately, yes — cherry eye can recur after surgery. Overall recurrence rates are estimated between 5 and 20 percent. Factors that influence recurrence include:

• Surgical technique. Procedures performed by board-certified veterinary ophthalmologists tend to have lower recurrence rates than those performed by general practitioners, simply due to the higher volume of cases and specialized training.
• Breed. Breeds with particularly loose connective tissue, such as Bulldogs and Neapolitan Mastiffs, may have slightly higher recurrence rates.
• Age at first occurrence. Very young puppies who develop cherry eye may be more prone to recurrence because their tissues are still developing.
• Aftercare compliance. Dogs that manage to rub or paw at the eye during recovery — even once — are at a higher risk of recurrence.

If cherry eye does recur after the first surgery, a second surgery is usually recommended. The second procedure may use a different or combined technique to provide additional support. Second surgeries are generally successful in resolving the issue permanently.

Risks of Leaving Cherry Eye Untreated

Some dog owners, particularly if the cherry eye appears small or seems to come and go, may wonder whether treatment is truly necessary. The answer is a clear yes. Leaving cherry eye untreated carries several significant risks that can affect your dog’s comfort and long-term vision.

• Chronic dry eye (keratoconjunctivitis sicca). This is the most serious long-term risk. When the gland remains prolapsed and exposed, it becomes inflamed and can sustain permanent damage. A damaged gland produces fewer tears, leading to chronic dry eye — a painful condition that requires lifelong daily medication and can result in corneal ulceration and vision loss if inadequately managed.
• Secondary infection. The exposed gland is vulnerable to bacterial infection. Repeated infections can cause scarring of the gland tissue, further reducing its ability to produce tears.
• Corneal damage. The prolapsed gland can physically rub against the surface of the eye (cornea) with every blink, causing irritation, abrasion, and potentially corneal ulcers. Corneal ulcers are painful and can threaten your dog’s vision.
• Chronic discomfort. While cherry eye is not acutely painful, a persistently prolapsed gland causes ongoing irritation and discomfort. Dogs may paw at the eye, rub their face on surfaces, and experience reduced quality of life.
• Cosmetic and structural changes. Over time, an untreated prolapsed gland can enlarge, become more inflamed, and cause permanent structural changes to the third eyelid that make eventual surgical correction more difficult and less likely to succeed.

The longer cherry eye goes untreated, the more damage accumulates and the harder it becomes to achieve a full recovery. Early surgical intervention offers the best outcome for your dog’s eye health and overall well-being.

Frequently Asked Questions About Dog Cherry Eye

Is cherry eye in dogs an emergency?

Cherry eye is not a life-threatening emergency, but it should be treated as an urgent condition. While you don’t need to rush to an emergency vet at 2 a.m., you should schedule a veterinary appointment within a few days of noticing the prolapsed gland. The sooner the condition is addressed, the better the long-term outcome for the gland and your dog’s eye health.

Can cherry eye go away on its own?

In rare cases, a very early or mild prolapse may seem to resolve on its own, with the gland slipping back into position temporarily. However, true spontaneous permanent resolution is extremely uncommon. In the vast majority of cases, once the gland has prolapsed, it will continue to do so — and the episodes typically become more frequent and persistent over time. Veterinary treatment is almost always necessary.

Does cherry eye hurt my dog?

Cherry eye itself is not usually acutely painful, but it does cause discomfort, irritation, and a foreign-body sensation in the eye. Dogs with cherry eye may squint, paw at their face, or produce excess tears. If secondary complications like infection or corneal abrasion develop, the condition can become significantly more painful.

Can I prevent cherry eye in my dog?

Because cherry eye is primarily caused by a congenital weakness in the connective tissue anchoring the gland, there is no reliable way to prevent it. The best approach is awareness — particularly if you have a breed that is predisposed — and prompt action if you notice any swelling or redness at the inner corner of your dog’s eye. Keeping your dog’s eyes clean and monitoring for early signs can help ensure rapid treatment.

Will my dog need eye drops for life after cherry eye surgery?

Most dogs do not need long-term eye drops after a successful cherry eye surgery. Medicated drops are typically used for one to two weeks during the recovery period. However, if the gland sustained significant damage before or during prolapse, your vet may recommend periodic tear production testing (a Schirmer tear test) to monitor for early signs of dry eye. If dry eye develops, lifelong daily eye drops will be necessary.

Should I adopt a breed prone to cherry eye?

Absolutely. Breeds prone to cherry eye — like Bulldogs, Beagles, and Cocker Spaniels — make wonderful companions. Cherry eye is a manageable and treatable condition, not a reason to avoid a breed. Being informed about the possibility simply means you’ll be better prepared to act quickly if it occurs. Visit our adoption page to find dogs of all breeds looking for loving homes.