
Key Takeaways
Along with a visible red mass, cherry eye in dogs causes eye irritation, tearing, and inflammation.
It can often be caused by genetics, age, and eye conditions involving trauma, infections, allergies, and inflammation.
The most reliable mode of treatment for cherry eye in dogs is surgical correction, preferably the pocket method.
Summary
Cherry eye is the name for an eye condition that refers to the prolapse of the third eyelid gland.
Dogs have a protective layer in their eyes that shields them from dust and debris. This third eyelid, called the nictitating membrane, contains a specialized tear gland responsible for tear production. When this third eyelid gland’s tissues weaken, the gland itself may prolapse.
This causes a red, swollen mass to appear at the corner of the eye, hence the name cherry eye. Cherry eye can affect one or both eyes.

Clinical Signs
The main symptom is a visible, smooth, and red or pink mass protruding from the inner corner of the eye. This mass closely resembles a cherry. Other symptoms our veterinarians observe include:
Frequent squinting and blinking
Discharge or tearing
Pawing or rubbing at the eye
Swelling and inflammation
Sensitivity to bright light
Causes
Cherry eye in dogs is caused by weakness in the tissue that holds the third eyelid gland in place. When the tissue fails to support the gland, it will slip out.
This eye condition is largely inherited. Brachycephalic breeds, toy breeds, and dogs with excess facial skin are at risk of cherry eye. This is mainly due to their shallow eye sockets, protruding eyes, and heavy facial skin. Common breeds at risk include: Beagles, Great Danes, Pugs, and Cane Corsos.
Cherry eye is common in pups under 2 years old because their connective tissues are still developing, including the retinaculum, the tissue holding the tear gland.
It can also be caused by accidents or animal fights that can tear or stretch the fibrous ligaments anchoring the third eyelid gland in place.
Other significant conditions include conjunctivitis, eye infections, and eye allergies. The resulting inflammation enlarges the tear gland and makes it flip outward.
The UAE’s hot climate may also contribute to eye irritation in many dogs, especially brachycephalic breeds, which are popular in the country. Environmental factors such as sand, dust, and dry air may trigger severe eye inflammation, prompting the third eyelid gland to pop out.
Potential Complications
If left untreated, cherry eye in dogs can lead to conditions such as dry eye syndrome, corneal ulcers, secondary infections, surgical problems, and even vision loss.
Diagnosis
It’s primarily diagnosed by visual inspection for a prolapsed tear gland. Our ophthalmologists may perform an eye stain test, Schirmer tear test, and tonometry to rule out other eye conditions.
Eye stain test: Our team gently applies a special orange dye to the eye and washes away the excess. We’ll shine a blue light on the area to highlight any scratches or ulcers.
Schirmer tear test: We use a sterile, absorbent paper strip with a notch and a millimeter scale. This measures tear production in your dog's eye to check for keratoconjunctivitis sicca, or dry eye.
Tonometry: This test measures the dog’s intraocular pressure, helping to rule out conditions such as glaucoma.
Frequently Asked Questions
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