Cat Conjunctivitis: Symptoms and Treatment

Disease Prevention 📅 August 9, 2026 👁 8956

📝 Summary

Conjunctivitis is one of the most common eye diseases in cats, with the highest incidence in kittens. Every good owner should learn the basics of feline eye conditions to prevent and treat them before a small problem becomes a big one.

1 Overview

Symptoms of Feline Conjunctivitis

In a healthy cat, the conjunctiva of the eyelid is pink. When a cat has conjunctivitis, the eyelids become red and swollen, with increased and cloudy tearing. There may also be conjunctival protrusion, discharge around the eyes, crusted eyelids, tearing, squinting or inability to open the eye, and frequent pawing at the eyes — all possible signs of conjunctivitis.

Acute conjunctivitis: the conjunctiva becomes congested, red and swollen, sometimes with edema; the cat feels pain and itchiness and shows photophobia.

Purulent conjunctivitis: warmth around the eye, marked congestion, edema and purulent discharge. The eyes often stick together, preventing the cat from opening them, affecting normal vision.

Causes and Treatment of Feline Conjunctivitis

1. Foreign Objects in the Eye

Foreign objects such as dust, pollen or irritants can stimulate the conjunctiva and cause conjunctivitis. Check whether a foreign body remains; flush with plenty of eye-cleaning solution to wash it out. If flushing fails, have a vet remove it with sterile instruments. Then apply an antibacterial eye drop for disinfection and care.

2. Bacteria

Purulent bacteria or other pathogens entering the eye through some medium can cause a bacterial infection and conjunctivitis. This only needs an anti-inflammatory, antibacterial eye drop — no need to worry too much.

3. Viruses

Viral infections such as feline rhinotracheitis, feline panleukopenia and influenza can also cause conjunctivitis, often with fever, loss of appetite and lethargy. Prompt veterinary examination is needed; eye drops can clear debris and soothe.

4. Ingrown Eyelashes

Abnormalities such as ingrown eyelashes or eyelid ectropion, or eye trauma causing inward-growing lashes, can also trigger conjunctivitis. Ingrown lashes can be temporarily plucked, but surgery or electrolysis/cryotherapy is recommended for a permanent fix.

Daily Eye Cleaning and Prevention

① Normally observe the eyes and regularly use a cat-specific eye wash for care.

② Keep the living environment clean and tidy to reduce exposure to viruses and bacteria.

③ Deal with eye injuries promptly; if there is trauma or ingrown lashes, take the cat to the vet.

If you keep several cats, isolate any cat showing conjunctivitis symptoms.

A friendly reminder: keep the home clean to avoid bringing pathogens to healthy cats.

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