Third Eyelid Showing in Cats: It's Not Always "Cherry Eye"

Worth understanding clearly: not every visible third eyelid is "cherry eye" (a true prolapsed tear gland). A separate condition called Haws syndrome also causes the third eyelid to become visibly elevated, but works through an entirely different mechanism. Haws syndrome generally resolves on its own, though treatment for accompanying symptoms may still be needed — and worth knowing genuinely: repeated episodes of Haws syndrome can actually indicate an underlying chronic gastrointestinal problem, a real, non-obvious connection between an eye symptom and gut health worth mentioning to your vet if it recurs.

Worth knowing directly: genuine cherry eye — a true prolapse of the third eyelid's tear gland — is uncommon in cats specifically, occurring far more frequently in dogs. If you've researched cherry eye and found mostly dog-focused information, that's not a coincidence; it reflects a real difference in how often this specific condition actually affects each species.

Beyond Haws syndrome and true cherry eye, conjunctivitis (commonly caused by viral respiratory infections in cats specifically) is a frequent cause of an elevated third eyelid, as are general eye infections and injuries. Most of these causes come with additional symptoms — redness, excessive squinting, or discharge — though occasionally a minor infection shows no other obvious sign beyond the raised third eyelid itself. Any persistently visible third eyelid, even without other symptoms, is worth a veterinary visit rather than assuming it will resolve on its own.

The gland associated with the third eyelid produces roughly 30% of the eye's total tear film — a genuinely significant contribution, not a minor structure. Chronic exposure from a true prolapse leads to reduced tear production over time, which can progress to dry eye disease and, left untreated, real discomfort and potential vision complications.

When true cherry eye does occur in cats, it's thought to be more common in specific breeds — including the Burmese and Persian, both covered in our breed guides, along with American Shorthairs. If you own one of these breeds, this is worth knowing as a real, if uncommon, breed-linked risk.

When true cherry eye is confirmed, treatment is surgical repositioning of the gland — there's no effective home remedy or medication that resolves the underlying structural issue. Recovery typically takes about a week, with commonly cited costs of $300-500 per eye. Worth knowing honestly: the most common complication is the gland prolapsing again, sometimes requiring a second procedure — and given many cats eventually develop the issue in both eyes, a vet may recommend preventive monitoring or treatment of the unaffected eye too.