Cat eyes are remarkably expressive -- and remarkably vulnerable to disease. From minor irritation to vision-threatening conditions, eye problems are among the most common reasons for veterinary visits. Early recognition and treatment prevent most eye conditions from causing permanent damage.
Table of Contents
Common Cat Eye Problems
| Condition | Symptoms | Urgency |
|---|---|---|
| Conjunctivitis | Red, swollen conjunctiva, discharge (clear or colored) | Vet within 1-2 days |
| Upper respiratory (herpes/calicivirus) | Watery eyes, sneezing, nasal discharge | Vet within 1-2 days |
| Corneal ulcer | Squinting, tearing, cloudiness, pawing at eye | Same-day vet visit |
| Glaucoma | Enlarged eye, cloudiness, pain, vision loss | EMERGENCY |
| Uveitis | Squinting, tearing, color change in iris, constricted pupil | Same-day vet visit |
| Cataracts | White/cloudy lens, vision impairment | Non-urgent but progressive |
| Cherry eye | Red mass protruding from inner corner | Vet within days |
Feline Herpes: The #1 Cause of Cat Eye Problems
- Feline herpesvirus (FHV-1) causes 80-90% of infectious eye disease in cats
- Most cats contract it as kittens -- virus remains dormant for life
- Stress, illness, or immunosuppression triggers flare-ups
- Symptoms: watery eyes, conjunctivitis, corneal ulcers, sneezing
- Treatment: antiviral eye drops (cidofovir), L-lysine (controversial), stress reduction
- NOT curable -- managed through flare-up treatment and stress minimization
Eye Discharge Guide
- Clear, watery: Likely viral (herpes), allergies, or mild irritation -- monitor, vet if persistent
- Yellow/green, thick: Bacterial infection -- needs veterinary treatment with antibiotic drops
- Brown/rust: Normal tear staining in some breeds (Persians, Himalayans) -- cosmetic, not medical
- Bloody: Trauma, foreign body, or serious disease -- vet ASAP
When to Rush to the Emergency Vet
- Sudden vision loss (bumping into things, dilated pupils)
- Eye bulging or appearing larger than normal
- Visible foreign object in the eye
- Trauma to the eye area
- Eye suddenly appears different color
- Intense squinting with inability to open eye
Home Care for Minor Eye Issues
- Gently wipe discharge with warm, damp cotton ball (one per eye to prevent cross-contamination)
- Do NOT use human eye drops without veterinary guidance
- Saline solution (sterile, preservative-free) can flush minor irritants
- Keep environment clean and dust-free
- Reduce stress triggers during herpes flare-ups
Frequently Asked Questions
My cat has watery eyes but seems otherwise fine -- should I worry?
Occasional watery eyes (especially in flat-faced breeds) can be normal tear overflow. Persistent watery eyes, especially with squinting, color change in discharge, or behavioral changes, warrant a vet visit. If only one eye is affected, it is more likely to be a problem (infection, foreign body, injury) than both eyes (more likely viral or allergic). When in doubt, a vet check is always better than waiting.
