Cherry Eye in Neapolitan Mastiffs
Cherry eye is a common condition in Neapolitan Mastiffs where the gland of the third eyelid prolapses, appearing as a red or pink bulge in the inner corner of the eye. Neapolitan Mastiffs' facial structure and loose connective tissue make them particularly susceptible. Surgical replacement (not removal) of the gland is the proper treatment.
Prevalence
Common in the breed
Typical Onset
Under 2 years of age (most common in young dogs)
Severity
Moderate
Symptoms to Watch For
If your Neapolitan Mastiff shows any of these signs, monitor closely and consult your veterinarian.
Risk Factors
- •brachycephalic or loose-skinned breed conformation
- •weakness of connective tissue attachment
- •young age (connective tissue still developing)
- •possible hereditary component
Diagnosis
Visual diagnosis — the prolapsed nictitans gland is clearly visible as a red/pink mass in the medial canthus. No advanced imaging usually needed. Examination rules out other causes of eye swelling (tumors, foreign bodies, abscesses).
Treatment
Surgical replacement (tacking) of the gland is the recommended treatment — the Morgan pocket technique or anchoring suture technique repositions and secures the gland. NEVER remove the gland — it produces 30-50% of tear film, and removal leads to lifelong dry eye (KCS). Post-surgical recurrence rates are 5-20%. Medical management with anti-inflammatory drops is temporary.
Prevention
No proven prevention — the condition is caused by weakness of the connective tissue anchoring the gland. Choose breeders aware of cherry eye in their lines. Early surgical correction prevents secondary gland damage.
When to See a Vet
See your vet within a few days of noticing the red bulge. While not an emergency, prompt surgical correction is easier and more successful than delayed repair. Both eyes should be examined as bilateral involvement is common.
Other Health Conditions in Neapolitan Mastiffs
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