Corneal ulcers cost $200-$500 for simple cases, up to $1,500-$3,000 for deep ulcers threatening vision. Most are caused by feline herpesvirus (FHV-1). Superficial ulcers heal in days with medication; deep ulcers are emergencies. Brachycephalic cats (Persians, Himalayans) are highest risk.
FHV-1 (feline herpesvirus) damages corneal epithelial cells, creating dendritic ulcers. Other causes: trauma, entropion (inward-rolling eyelids), conjunctivitis, dry eye, steroid overuse. Brachycephalic cats are prone due to prominent, shallowly set eyes.
Squinting or holding the eye shut. Excessive tearing or discharge. Pawing at the eye. Hazy or cloudy cornea with visible defect. Red surrounding tissue. In deep ulcers: sunken appearance or visible stromal loss. Blue-gray corneal haze indicates edema.
Fluorescein stain ($50-$100) makes ulcers glow green under UV light. Slit-lamp exam assesses depth. Schirmer tear test ($30-$50) for dry eye. Culture ($100-$200) for infected ulcers. PCR confirms FHV-1. Specialist exam: $100-$150.
Superficial: antibiotic drops + pain control ($200-$500). FHV-1: antiviral drops ($30-$60/week) + oral famciclovir ($30-$60/month) + L-lysine. Deep stromal ulcers: ophthalmologist referral, conjunctival graft surgery ($1,500-$3,000). Descemetocele is an emergency.
Superficial FHV-1 ulcer: $200-$500 for diagnosis and medication. Deep or surgical ulcer: $1,500-$3,000+ at an ophthalmology specialist.
Simple superficial ulcers heal in 5-7 days with treatment. Deep or stromal ulcers: 2-4 weeks. Recurrence is common with FHV-1 — up to 45% of cats experience recurrent episodes under stress.
Vaccinate against FHV-1 (core vaccine reduces severity, not infection). Manage stress (main FHV-1 reactivation trigger). Daily L-lysine supplementation for FHV-1-positive cats. No touching the eyes with unclean hands.
02/04
Fluorescein exam + antiviral drops + pain control.
Corneal ulcers are covered as illness/injury by most policies. Coverage includes exams, fluorescein testing, antiviral/antibiotic meds, and surgical repair. Ophthalmology referrals are typically covered. Important for Persian and brachycephalic cat owners.
FHV-1 is lifelong — cats are permanent carriers. Any documented pre-enrollment eye problems, conjunctivitis, or upper respiratory infection may trigger FHV-1 exclusions on future ulcer claims as pre-existing. This trap affects many cats with prior kitten URIs.
FHV-1 ulcers recur as the virus reactivates under stress. After first claim, some policies exclude recurrences as chronic pre-existing. Curable condition clauses may stop covering FHV-1 after initial recovery. Check your policy's recurrence and chronic language.
Some insurers apply breed-specific exclusions for anatomically predisposed conditions. Persians and Himalayans may have eye conditions entirely excluded. Confirm corneal/eye coverage for flat-faced breeds before enrolling.
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