Cherry eye in dogs is a prolapse of the third eyelid's tear gland — the pink lump in the inner corner of the eye, most often in a dog under twelve months old. In Australia it turns up disproportionately in the breeds that have dominated registrations for a decade: French Bulldogs, English Bulldogs, Cavoodles with Cocker ancestry, Shih Tzus and Bulldog crosses.
The gland, and why exposure matters
The nictitans gland supplies a large fraction of the watery tear film. Once it everts, it sits unprotected in air that in much of Australia is hot, dry and dusty for months at a time. It dries, swells and becomes progressively harder to replace — the practical argument against waiting.
How common is it?
The best population data comes from a primary-care study of 905,543 dogs: annual prevalence 0.20%, median age at diagnosis 0.63 years, and about 11 times the odds in dogs under one year compared with two- to four-year-olds (O'Neill et al., PLOS ONE, 2022; PMID 35081121). Genetics is increasingly clear: a 2024 study of 769,337 primary-care records associated the FGF4L1 retrogene insertion with prolapse of the nictitans gland (Freyer et al., Genes, 2024; doi:10.3390/genes15020198).
Cherry eye or something else?
| What you see | Likely | Urgency |
|---|---|---|
| Smooth pink mass, inner corner, dog comfortable | Cherry eye | Vet within a few days |
| Membrane sliding across, no lump | Third eyelid elevation — dog third eyelid showing | Prompt |
| Whole lid swollen | Sting, bite, allergy — dog eye swollen | Same day |
| Eye shut, painful, watering | Grass seed, ulcer — dog squinting one eye | Emergency |
| Thick coloured discharge | Possible infection — warning signs of a dog eye infection | Same day |
One Australian specific: in grass-seed season a dog with a red inner corner and a shut eye is a foreign-body case until proven otherwise, not a cherry eye case. The distinguishing feature is pain.
Surgery: replacement beats removal, every time
Repositioning — usually a pocket (Morgan) technique — is standard. A retrospective series of 101 dogs and 126 eyes using a pocket variant with temporary scleral fixation achieved success in 125 of 126 eyes after a single surgery (Guionnet et al., Veterinary Ophthalmology, 2026; PMID 40415639), against a general recurrence range of 5–20% across techniques.
Gland excision remains the shortcut to avoid. Removing the third eyelid gland measurably degrades the ocular surface (Saito et al., Veterinary Ophthalmology, 2001; PMID 11397314) and is linked to keratoconjunctivitis sicca later — daily medication for the rest of the dog's life. Registered veterinary ophthalmology specialists practise in Sydney, Melbourne, Brisbane, Adelaide and Perth and accept referrals from regional clinics; if you are in a rural area, ask your vet early, because scheduling travel is the slow part. Most Australian pet insurance covers cherry eye when it is not pre-existing, and many policies apply a waiting period — check before the consultation, since the diagnosis date is what underwriters use.
Home care while you wait
- Elizabethan collar on. Rubbing is what causes corneal damage.
- Flush, don't medicate. A sterile, pH-neutral rinse clears dust and pollen without stinging. Our gentle daily dog eye rinse is buffered to pH 7.0–7.2 and isotonic with natural tears, with sodium hyaluronate and no alcohol, bleach or fragrance. Hygiene only — it does not reposition a gland.
- Keep the dog out of dust and surf. Salt water and sand on an exposed gland make a bad week worse.
- No human redness drops.
Our main cherry eye in dogs guide covers the surgical decision in more depth, the complete guide to dog eye health sets out the urgency checklist, and you'll find daily products in our dog eye care essentials.
FAQ
Will it settle on its own?
It may retract for a day or two, but the torn anchor remains and recurrence is expected until the gland is surgically replaced.
Is cherry eye more common in summer here?
There's no seasonal cause. Heat, dust and pollen simply make an exposed gland more irritated, so cases look worse in January than in July.
Both eyes at once — normal?
Yes. Bilateral prolapse is common, either simultaneously or with the second eye following within months.
Scientific References
- O'Neill DG, et al. Breed and conformational predispositions for prolapsed nictitating membrane gland (PNMG) in dogs in the UK: A VetCompass study. PLOS ONE. 2022;17(1):e0260538. PMID 35081121
- Freyer J, et al. Association of FGF4L1 Retrogene Insertion with Prolapsed Gland of the Nictitans (Cherry Eye) in Dogs. Genes. 2024;15(2):198. doi:10.3390/genes15020198
- Saito A, et al. The effect of third eyelid gland removal on the ocular surface of dogs. Veterinary Ophthalmology. 2001;4(1):13-18. PMID 11397314
- Guionnet A, et al. Surgical Correction of Prolapse of Nictitating Membrane Gland Using a Variant of the Pocket Technique. Veterinary Ophthalmology. 2026;29(1). PMID 40415639
Veterinary disclaimer: Educational content only; not a substitute for examination by a registered Australian veterinarian. Pure Majesty Pets products are hygiene aids, not medicines. Free worldwide shipping.