Cherry eye can’t be reliably prevented in individual dogs because it stems from a genetic weakness in the connective tissue that holds the third eyelid gland in place. What you can do is reduce your risk before getting a dog by choosing breeds and breeders carefully, manage environmental factors that may trigger a prolapse in predisposed dogs, and act quickly if it does occur to prevent lasting damage.
Why Cherry Eye Is Hard to Prevent
The root cause of cherry eye is laxity in the connective tissue that anchors the gland of the third eyelid. This weakness is believed to be genetic. A 2024 genome-wide association study published in Frontiers in Veterinary Science identified specific genetic regions linked to cherry eye across 12 dog breeds, including genes involved in eye development. In other words, some dogs are simply born with tissue that isn’t strong enough to keep the gland in place.
Because the underlying problem is structural and present from birth, there’s no supplement, exercise, or eye drop that can strengthen that tissue and guarantee the gland stays put. Prevention is really about reducing the odds rather than eliminating them entirely.
Choosing a Lower-Risk Breed
Breed selection is the single most effective way to lower your chances of dealing with cherry eye. Flat-faced (brachycephalic) breeds are hit hardest. Research from the Royal Veterinary College found that Neapolitan Mastiffs had an annual prevalence of 4.9%, English Bulldogs 4.8%, Lhasa Apsos 1.6%, and American Cocker Spaniels 1.5%. Boston Terriers, Beagles, and Pugs also appear on high-risk lists consistently.
Designer crossbreeds don’t escape the problem either. Puggles (Pug crossed with Beagle) showed a 2.1% annual rate, and Jugs (Jack Russell Terrier crossed with Pug) came in at 1.2%. If one parent breed carries the genetic predisposition, the offspring can inherit it. Mixing breeds doesn’t wash out the risk the way some people assume.
If you’re set on a high-risk breed, the next best step is selecting a breeder who screens for cherry eye in their breeding lines. Ask whether either parent, their siblings, or previous litters have had cherry eye. A responsible breeder will know this history. Since researchers have now identified specific genetic markers associated with cherry eye, breed-specific genetic testing may become available in coming years, but it isn’t a standard screening tool yet.
Managing Environmental Triggers
Environmental allergens may act as a trigger in dogs whose connective tissue is already weak. Allergens cause the gland to swell, and a swollen gland is more likely to pop out of position. According to veterinary experts cited by the American Kennel Club, younger dogs are especially prone to allergic reactions as they adjust to new environments. Once the gland swells from allergies, it tends to stay swollen rather than settling back on its own.
Keeping your dog’s environment clean can help reduce this risk. Practical steps include:
- Minimizing dust and pollen exposure by wiping your dog’s face after walks, especially during high-pollen seasons
- Using air filtration indoors if your dog shows signs of environmental allergies like watery eyes, sneezing, or face rubbing
- Addressing allergies early with your vet if you notice persistent eye redness or swelling, since controlling inflammation may reduce the chance of a prolapse in a predisposed dog
Physical trauma, on the other hand, doesn’t appear to be a meaningful trigger. Veterinarians note that events like rough play or a scuffle with another dog are generally unrelated to cherry eye developing.
What to Do If Cherry Eye Appears
If your dog develops a pink or red bulge in the corner of one eye, acting quickly is the best way to prevent complications. Left untreated, the exposed gland dries out and becomes inflamed, which can lead to dry eye (a chronic condition where the eye stops producing enough tears), conjunctivitis, and corneal ulcers. The third eyelid gland produces roughly 30% to 50% of your dog’s tear film, so losing its function has real consequences.
Surgery is the standard treatment, and the goal is always to reposition the gland rather than remove it. Two main techniques exist: the pocket method (where the gland is tucked back into a small pouch created in the surrounding tissue) and the anchoring method (where the gland is stitched to a deeper structure in the eye). A systematic review in Veterinary Evidence found no significant difference in recurrence rates between the two approaches. The choice typically comes down to your surgeon’s experience and preference.
Cherry eye surgery costs $500 to $1,200 on average, with a national average around $850. Simple cases at general practices can run as low as $300, while complicated or bilateral repairs at specialty hospitals may reach $2,500. Many surgeons charge a reduced per-eye rate when both eyes are done in the same session. Additional costs for anesthesia, pre-surgical bloodwork, post-operative eye drops, and follow-up visits can add to the total, so ask for an itemized estimate upfront.
Preventing Recurrence After Surgery
Even after successful surgery, cherry eye can come back. Following your vet’s post-operative instructions closely is the most important thing you can do. This typically means applying prescribed eye drops on schedule, keeping an Elizabethan cone on your dog to prevent rubbing or scratching, and avoiding rough play for the recovery period (usually two to three weeks).
Dogs who develop cherry eye in one eye have a higher chance of it occurring in the second eye. This doesn’t always happen, but it’s worth watching for. If you notice even mild swelling or redness in the other eye, getting it checked early gives your vet the best chance of managing it before a full prolapse develops.
If cherry eye does recur after surgery, a second procedure is usually recommended. Repeated prolapse can cause progressive damage to the gland, making each recurrence harder to repair and increasing the long-term risk of chronic dry eye.