Cherry Eye in Boston Terriers

The tear film is not simply water. It is a layered fluid that lubricates the cornea, carries oxygen and immune components to a tissue with no blood supply of its own, and washes away debris. The gland of the third eyelid contributes a substantial share of the watery component of that film.

Remove it and the dog loses that contribution permanently. What follows, often years later, is keratoconjunctivitis sicca - dry eye - in which an under-lubricated cornea becomes inflamed, pigmented, ulcerated and eventually much less transparent. Managing it means eye medication several times a day for the rest of the dog's life, and even then the cornea often loses clarity.

For a Boston Terrier the stakes are higher than average, because corneal ulcers already appear on the breed's documented health list. Their eyes sit forward in shallow sockets and are less protected than a long-nosed dog's. Adding a permanent tear deficit to an already vulnerable cornea is a poor trade for a shorter operation.

Modern surgery repositions the gland into a pocket created in the third eyelid, preserving its function. Recurrence happens in a minority of cases and can be addressed. Removal is reserved for the rare situation where the gland is genuinely diseased rather than simply displaced.

Cherry eye is not a life-threatening emergency, but it is not something to leave for a fortnight either. The exposed gland dries out, swells and becomes inflamed, and a swollen gland is harder to reposition than a fresh one.

If you think your Boston has cherry eye, the plan is three steps: write down what you have seen and when it started, book a veterinary appointment rather than waiting for the next flare, and take video of the behaviour or symptom before you go — the thing you are worried about rarely happens in the consulting room. Screening in the parents covers brachycephalic airway syndrome (boas), patellar luxation, cataracts.

What the vet visit should produce is a diagnosis and a written plan, not just reassurance: what is being ruled out, what the monitoring interval is, and which signs mean you come back sooner. Ask what the treatment costs across a year rather than per visit, because that is the number that decides whether you are managing this condition or reacting to it.

Between appointments, keep a short log — dates, what you saw, what changed. It is the single most useful thing an owner brings to a follow-up, and for cherry eye it is often what separates a clear pattern from a guess.