Cat symptom
Eye discharge / goopy eyes in cats
Watery, mucky, or crusty discharge from one or both eyes. Often mild irritation or allergies, but thick or colored discharge — especially with squinting or redness — can mean infection or a scratch that needs care.
Common causes of eye discharge / goopy eyes in cats
- Conjunctivitis (irritation or infection)
- Allergies, wind, or dust
- Blocked tear ducts (tear staining)
- A scratch or ulcer; in cats, viral infections (herpesvirus)
Who's most at risk
- Brachycephalic and prominent-eyed breeds
- Cats (upper respiratory viruses)
- Allergic or outdoor pets
- Breeds prone to dry eye or blocked ducts
What you can do at home
- Wipe discharge away gently with a clean, damp cloth (one wipe per eye)
- Keep hair trimmed away from the eyes and avoid irritants
- Don't use leftover or human eye drops without veterinary advice
When to see a vet
- Thick yellow/green discharge, redness, or swelling
- Squinting, pawing, or holding the eye shut (possible pain or ulcer)
- A cloudy or visibly injured eye
- No improvement within a day or two
When it's more serious
- Pain, or a cloudy or injured eye, suggests a scratch or ulcer — see a vet today.
- That points to infection — book a vet visit soon.
What your vet may do
- Eye exam, tear test, and a stain to check for a scratch or ulcer
- Identify infection vs allergy vs blocked duct
- Prescribe the right drops or ointment
- Treat an ulcer or refer if serious
Questions to ask your vet
- Is this infection, allergy, or a scratch?
- Is the eye surface damaged?
- Which drops are safe, and for how long?
- Could this be a cat virus that recurs?
Frequently asked questions
What causes eye discharge / goopy eyes in cats?
Watery, mucky, or crusty discharge from one or both eyes. Often mild irritation or allergies, but thick or colored discharge — especially with squinting or redness — can mean infection or a scratch that needs care. Common causes include: Conjunctivitis (irritation or infection); Allergies, wind, or dust; Blocked tear ducts (tear staining); A scratch or ulcer; in cats, viral infections (herpesvirus).
Is eye discharge / goopy eyes in cats an emergency?
Book a veterinary visit soon. See a vet right away if: Thick yellow/green discharge, redness, or swelling; Squinting, pawing, or holding the eye shut (possible pain or ulcer); A cloudy or visibly injured eye; No improvement within a day or two.
What can I do at home for a cat with eye discharge / goopy eyes?
Wipe discharge away gently with a clean, damp cloth (one wipe per eye) Keep hair trimmed away from the eyes and avoid irritants Don't use leftover or human eye drops without veterinary advice
Sources
Reviewed by the Webvet Veterinarian Team
This guide is general information, not a diagnosis, and does not replace an exam by your veterinarian. If your pet is in distress, contact your vet or an emergency clinic right away.