Disorder - Eyelid gland, third, prolapse of

Organ Systems Involved
Integument

Alternative disorders described within LIDA

Eversion of third eyelid cartilage

Alternative Names
Prolapse of nictitans glands; Cherry eye

Presenting Signs

A third eyelid gland prolapse is an abnormal protrusion of the tear gland. The gland is normally located behind the third eyelid (nictitating membrane). This tear gland is responsible for producing one-third to one-half of the tears needed to lubricate the eye. The prolapsed gland appears as a pink or reddish smooth lump in the inside corner of the eye. The gland does not function normally when it is in the abnormal position and may also cause minor discomfort, conjunctivitis and discharge from the eye. Untreated prolapsed glands may become inflamed and enlarged, and can cause excess tear production and obstruct vision.

The third eyelid gland may prolapse if the tissue attaching the gland to the surrounding structures of the eye is excessively loose. This is a rare condition in cats.

Breeds Affected
Burmese


Treatment

Surgical and Medical: antibiotics and anti-inflammatory drops or ointment can reduce eye irritation in the short-term. However, the recommended treatment is surgery to permanently restore the gland in its normal position. The gland should not be removed permanently as this can increase the animal’s risk of developing dry eye syndrome (lack of tear production).

PubMed References
Eyelid gland, third, prolapse of

Contributor
Valerie See