Companion Animals

Corneal Sequestrum in Cats: Welfare and Surgical Management

Welfare guide to feline corneal sequestrum -- a unique and painful corneal condition requiring surgical treatment.

Key Facts

Corneal sequestrum is a unique condition of cats -- dark pigmented necrotic plaques forming on the corneal surface
It is most common in brachycephalic breeds including Persians, British Shorthairs, and Himalayans
The condition causes chronic corneal pain -- affected cats squint and produce excessive ocular discharge
The sequestrum may progress and deepen, increasing pain and risk of perforation
Surgical removal (superficial keratectomy) is the definitive treatment -- providing rapid welfare improvement
Post-surgical management includes topical antibiotics and pain relief during healing
Recurrence is possible but not inevitable -- monitoring is required long-term
The underlying chronic brachycephalic facial conformation predisposes to this and other corneal conditions

Welfare Significance

Corneal sequestrum causes chronic eye pain that significantly impairs quality of life. Affected cats often show subtle signs -- squinting, reduced activity -- that owners attribute to personality rather than pain. Surgical removal provides dramatic welfare improvement, often transforming a chronically uncomfortable cat into a comfortable, interactive one. The wider concern is that brachycephalic breeding practices predispose cats to this and multiple other welfare problems.

What You Can Do

Seek veterinary ophthalmology assessment for any cat with dark discolouration on the cornea
Do not wait for a sequestrum to progress -- earlier surgical removal typically has better outcomes
Monitor for recurrence after surgical treatment and seek prompt reassessment if signs return
Choose cat breeds without extreme brachycephalic conformation to avoid corneal and other welfare problems