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Corneal Sequestrum

Authored By:

ANIMAL EYE SPECIALISTS, INC.
Matthew J. Chavkin, DVM, MS
- Diplomate, American College of Veterinary Ophthalmologists

Tanja Nuhsbaum, DVM, MS
- Diplomate, American College of Veterinary Ophthalmologists

What is a corneal sequestrum? The condition is unique to cats and is characterized by an area of corneal degeneration with brown pigmentation.

Are certain breeds more likely to develop a corneal sequestrum? Yes. Persians, Himalayans, Siamese, and Burmese cats are diagnosed with the disorder most frequently. However, any breed can be affected.

What causes a corneal sequestrum? Although the cause is unknown, there is usually a history of corneal ulceration, irritation, and/ocular feline herpes virus infection.

What are the signs of a corneal sequestrum? Squinting and tearing with a brown tear-stain are common. The are of corneal degeneration appears as a brown "spot" on the surface of the eye, which can vary in size and depth in the cornea.

How is a corneal sequestrum treated? Surgical treatment is almost always necessary.

Will the condition come back? The risk of recurrence is reduced when the entire corneal sequestrum is excised and the corneal defect is reconstructed with a grafting procedure. A sequestrum may develop in the other eye.

This article is reprinted with permission from Matthew J. Chavkin, DVM, MS
3550 S. Jason St.
Englewood, Colorado 80110
(303) 874-2070
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