Cherry Eye in Dogs — Prolapsed Tear Gland Causes, Symptoms & Treatment

Cherry eye is a common condition where the tear gland in your dog's third eyelid (nictitating membrane) becomes displaced and protrudes as a red, fleshy mass in the corner of the eye. This gland, normally hidden beneath the third eyelid, produces approximately 30% of your dog's tear film — making it essential for maintaining healthy eyes.

The condition gets its name from the characteristic cherry-red appearance of the prolapsed gland. Unlike humans, dogs have a third eyelid that sits in the inner corner of each eye, containing this crucial tear-producing gland. When the connective tissue holding the gland in place weakens or breaks, the gland pops out and becomes visible.

"Cherry eye is one of the most common eye conditions I see in young dogs, particularly in certain breeds. While it looks alarming, prompt treatment usually leads to excellent outcomes and preserves normal tear production." — Dr. James Harper, DVM

Cherry eye typically affects young dogs between 6 months and 2 years old, though it can occur at any age. The condition can affect one or both eyes, and if your dog develops cherry eye in one eye, there's a higher chance the other eye will be affected later. Understanding this condition helps you recognise the signs early and seek appropriate treatment to prevent complications.

Cherry eye occurs due to a weakness in the connective tissue that anchors the tear gland to the surrounding structures. This weakness is often congenital (present from birth), meaning some dogs are simply born with looser connective tissue that's more prone to allowing gland displacement.

Certain breeds show a strong predisposition to cherry eye due to their genetic makeup and facial structure:

• Bulldogs and French Bulldogs — flat-faced breeds with prominent eyes
• Cocker Spaniels — both English and American varieties
• Boston Terriers and Pugs — brachycephalic breeds with shallow eye sockets
• Beagles and Basset Hounds — breeds with droopy eyelids
• Mastiffs and Saint Bernards — giant breeds with loose facial skin
• Lhasa Apsos and Shih Tzus — small breeds with prominent eyes

While genetics play the primary role, other factors can contribute to cherry eye development. Trauma to the eye area, chronic inflammation, or conditions that cause persistent rubbing or scratching can weaken the supporting tissues. Additionally, some dogs may develop cherry eye secondary to other eye conditions that cause ongoing irritation.

Understanding your dog's breed risk helps you monitor for early signs. If you have a predisposed breed, regular eye examinations and prompt attention to any changes in your dog's eyes are particularly important for maintaining long-term eye health.

The most obvious sign of cherry eye is the appearance of a red, swollen mass protruding from the inner corner of your dog's eye. This prolapsed gland typically appears suddenly and may vary in size from a small pink bump to a large, angry-red protrusion covering a significant portion of the eye.

Beyond the visible gland, watch for these accompanying symptoms:

• Excessive tearing — increased tear production or watery discharge
• Thick, mucoid discharge — yellow or green secretions indicating secondary infection
• Squinting or blinking — signs of discomfort or pain
• Pawing at the eye — attempts to relieve irritation
• Swelling of surrounding tissue — puffy eyelids or facial swelling
• Changes in behaviour — reluctance to play or sensitivity to light

It's important to note that cherry eye can sometimes be confused with other eye conditions. Unlike conjunctivitis, which typically causes redness across the entire eye surface, cherry eye presents as a distinct, localised mass. The prolapsed gland may also appear to "pop in and out" occasionally, especially in early stages.

Some dogs show minimal discomfort initially, whilst others may exhibit significant irritation from the start. The size and inflammation of the prolapsed gland often correlate with the level of discomfort your dog experiences. Early intervention typically results in better outcomes and less complicated treatment.

Treatment for cherry eye focuses on repositioning the prolapsed gland and securing it in its proper location whilst preserving its tear-producing function. Surgical correction is typically the preferred treatment, as non-surgical approaches rarely provide permanent resolution.

Conservative Management

In very early cases or whilst awaiting surgery, your vet may recommend temporary measures including anti-inflammatory medications and gentle massage. However, these approaches seldom provide long-term success, and delaying surgery can lead to increased inflammation and complications.

Surgical Correction

Modern surgical techniques focus on gland repositioning rather than removal, preserving the gland's essential tear production function. The most common procedures include:

• Pocket technique — creating a tissue pocket to hold the gland in place
• Anchoring sutures — securing the gland with permanent sutures
• Modified pocket technique — combining pocket creation with additional stabilisation

Surgery is typically performed under general anaesthesia and takes 30-60 minutes. Most dogs go home the same day with post-operative care instructions including antibiotic eye drops, anti-inflammatory medications, and activity restrictions.

Whilst gland removal was historically performed, it's now discouraged due to the high risk of developing keratoconjunctivitis sicca (dry eye) later in life. Preserving the gland maintains normal tear production and prevents long-term complications that require lifelong management.

Successful recovery from cherry eye surgery depends largely on proper post-operative care and preventing your dog from traumatising the surgical site. Most dogs heal well with appropriate management, returning to normal activity within 2-3 weeks.

Your vet will provide specific post-surgical instructions, typically including:

• Elizabethan collar use — preventing pawing and scratching for 10-14 days
• Topical medications — antibiotic and anti-inflammatory eye drops applied 2-3 times daily
• Activity restriction — limited exercise and avoiding rough play for 2 weeks
• Regular monitoring — watching for signs of infection or surgical complications
• Follow-up appointments — typically scheduled 1-2 weeks post-surgery

During recovery, maintain gentle eye hygiene by carefully cleaning any discharge with warm, damp cotton balls. Apply medications as directed, ensuring you don't contaminate the dropper tip by touching it to your dog's eye.

Watch for concerning signs that warrant immediate veterinary attention, including persistent bleeding, severe swelling, green or yellow discharge, or signs that your dog is experiencing significant pain. Most complications, if they occur, develop within the first week after surgery.

The success rate for cherry eye surgery is generally high, with most dogs experiencing complete resolution of symptoms. However, recurrence can occur in 5-15% of cases, particularly if the initial repair fails or if your dog has underlying connective tissue weakness affecting both eyes.

While cherry eye has a strong genetic component that can't be prevented, maintaining optimal eye health and being vigilant for early signs can improve outcomes. For dogs that have experienced cherry eye, ongoing care helps prevent complications and monitors for recurrence.

Implement these preventive strategies to support your dog's eye health:

• Regular eye examinations — weekly checks for discharge, redness, or changes
• Gentle cleaning routine — removing discharge with damp cotton balls to prevent bacterial overgrowth
• Environmental management — reducing exposure to dust, pollen, and other irritants
• Prompt treatment — addressing eye injuries or infections immediately
• Breeding considerations — avoiding breeding dogs with cherry eye history

For dogs that have undergone cherry eye surgery, long-term monitoring remains important. Schedule regular veterinary eye examinations, particularly during the first year post-surgery. Watch for signs of recurrence, changes in tear production, or development of other eye conditions.

Some dogs may develop cherry eye in the opposite eye months or years after the initial occurrence. Being prepared for this possibility and maintaining a relationship with a veterinary ophthalmologist can ensure prompt, appropriate treatment if needed.

Understanding your dog's individual risk factors and maintaining proactive eye care provides the best foundation for long-term eye health. Early intervention when problems arise, combined with consistent preventive care, helps ensure your dog maintains comfortable vision throughout their life. Remember that cherry eye, while concerning in appearance, is very treatable with modern surgical techniques, and most dogs go on to live normal, comfortable lives with proper care.