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Conjunctivitis - vet costs and insurance

Conjunctivitis in Cats: symptoms, treatment and costs

  1. Facts & Vet costs
  2. The Real Cost
  3. Insurance Traps
  4. Common Questions
By Marcel Janik · Last updated Oct 14, 2026

Treating cat conjunctivitis costs $125-$400. Conjunctivitis inflames the membrane lining the eyelids. Most cases are viral (feline herpesvirus) or bacterial, affecting one or both eyes. Flat-faced breeds are prone to recurrent episodes.

What Causes Conjunctivitis in Cats
Feline herpesvirus (FHV-1) is the most common cause and reactivates during stress. Chlamydia felis and Mycoplasma bacteria are secondary. Allergens, dust, smoke, or foreign bodies trigger it. In kittens, it often accompanies upper respiratory infections.

Symptoms

What to Watch For
Red, swollen eyelids. Clear discharge (viral) or yellow-green (bacterial). Squinting, holding eye closed, third eyelid visible, pawing at face. Sneezing and nasal discharge if part of upper respiratory infection. One or both eyes affected.

Diagnosis

$75-$200
Eye examination ($50-$75). Fluorescein stain ($20-$40) to check corneal ulcers. Schirmer tear test for dry eye ($20-$40). Diagnosis usually clinical. PCR testing for herpesvirus or Chlamydia ($75-$150) in severe cases.

Treatment

$50-$200
Antibiotic eye drops or ointment ($15-$40) applied 2-4 times daily for 1-2 weeks. Antiviral drops ($30-$60) for herpesvirus. L-lysine supplement ($10-$20/month). Oral antibiotics ($20-$50) if systemic. Warm compresses and anti-inflammatory drops if indicated.

Total Cost

$125-$400
Simple cases are very affordable. Recurring herpesvirus flare-ups add to the lifetime cost. $125-$400 per episode.

Flat-Faced Breeds

Higher Risk
Persians, Himalayans, British Shorthairs, and Scottish Folds are more prone because of facial anatomy and tear duct issues.

Recovery

1-2 Weeks
Most cases resolve within 1-2 weeks with treatment. Herpesvirus cases may recur during stress. Chronic cases need ongoing management.

Prevention
Reduce stress to prevent herpesvirus flare-ups. Keep living areas clean. Vaccinate against respiratory viruses.

The Real Cost

$125typical cost

Simple cases are very affordable.

Diagnosis $75-$200
Treatment $50-$200
Total Cost $125-$400
Red flags

Insurance Traps

Eye infections are common and usually covered - but recurrent cases can get tricky.

Eye Infection Coverage Basics

Waiting period
Most policies cover conjunctivitis as a standard illness. The 14-day waiting period applies. Eye drops, exams, and diagnostics are typically covered. First-time claims are approved without trouble.

Recurrent Herpesvirus Trap

Pre-existing
Recurring herpesvirus conjunctivitis may be classified as chronic or pre-existing. Once documented, switching insurers may exclude all eye-related claims. Relevant for breeds prone to eye issues.

Cost vs Deductible

Deductible
A single episode ($125-$400) may not exceed your annual deductible. Multiple episodes, specialist referrals, or corneal ulcers push costs higher. Insurance is valuable for recurrent or complicated cases.

Breed-Related Exclusions

Chronic condition
Some policies exclude breed-specific conditions. Flat-faced breeds like Persians and Himalayans have chronic eye issues. Check if your policy treats breed-related eye conditions differently.

Common Questions

Real answers about costs, treatment, and insurance coverage.

What does conjunctivitis look like in cats?
Red, swollen eyelids with discharge - clear and watery (viral) or thick yellow-green (bacterial). Squinting, holding an eye shut, pawing at the face. Third eyelid partially visible. Severe cases: eyelids crust and stick together.
How much does it cost to treat cat conjunctivitis?
$125-$400: exam $50-$75, staining $20-$40, drops $15-$60, PCR testing $75-$150. Recurring episodes or corneal ulcers increase costs.
Is cat conjunctivitis contagious to humans?
Feline herpesvirus is species-specific, not transferable to humans. Chlamydia felis in immunocompromised humans is very rare. Wash hands after handling infected cats and avoid touching your eyes.
Can I use human eye drops on my cat?
No - human eye drops may contain harmful medications or preservatives for cats. Some artificial tears are safe, but only if your vet recommends them. Cats need species-appropriate medications at correct concentration. The wrong treatment makes it worse.
Why does my cat keep getting conjunctivitis?
Feline herpesvirus is most likely - it remains dormant and reactivates during stress (moving, new pets, boarding, illness). Flat-faced breeds with tear duct abnormalities have chronic issues. Reduce stress, use L-lysine, manage triggers.
How long does conjunctivitis take to clear up in cats?
Most improve within days, resolve in 1-2 weeks. Bacterial responds quickly to antibiotics; herpesvirus takes longer and recurs. No improvement after a week? Follow up - the diagnosis or medication may need adjusting.
Should I separate a cat with conjunctivitis from other cats?
Yes - it spreads via direct contact, shared bowls, contaminated hands. Separate infected cat until treatment ends. Clean shared items, wash hands between cats. Vaccination protects other household cats.
Does pet insurance cover cat eye infections?
Yes - most policies cover conjunctivitis as standard illness after waiting period. Eye drops, tests, visits included. For recurring herpesvirus cases, enroll early before the first episode. Once documented, future insurers may exclude it as pre-existing.

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Sources

Research and data used to compile this profile.

  1. 1 Maggs DJ. Antiviral therapy for feline herpesvirus infections. Vet Clin North Am Small Anim Pract. 2010;40(6):1055-62.
  2. 2 Stiles J. Feline herpesvirus. Vet Clin North Am Small Anim Pract. 2000;30(5):1001-14.