Eversion of the third eyelid cartilage in dogs
6-month-old Great Dane in which the leading edge of the right third eyelid is scrolled outwards, with the bulbar conjunctival surface visible and slightly irritated. No rounded mass protrudes from behind the edge.
What is the indicated treatment?
chevron_right Show answer and explanation
A. Complete removal of the third eyelid and its gland
It is excessive: it removes the accessory lacrimal gland and the corneal protection of the third eyelid, risking dry eye and keratitis.
B. Resection of the bent portion of the cartilage through the conjunctiva, preserving the gland
Correct. The problem is a T-shaped cartilage that grows bent. Only the deformed segment is removed via a conjunctival incision, leaving the gland intact, and the third eyelid regains its position.
C. Morgan conjunctival pocket technique, as for cherry eye
That technique repositions a prolapsed gland but does not straighten the cartilage. If both problems coexist, both are corrected in the same operation.
D. Antibiotic ointment and wait, because it corrects itself with growth
Once bent, the cartilage does not straighten by itself; conjunctival exposure maintains the irritation and discharge.
lightbulb Key takeaway
Cartilage eversion is typical of young large and giant breeds (Great Dane, Weimaraner, German Shorthaired Pointer, St Bernard, Newfoundland). It is sometimes accompanied by gland prolapse: correct both and always preserve the gland.
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Updated: October 31, 2026 · Educational content for veterinary professionals. It does not replace current clinical guidelines or the judgement of the attending veterinarian.