What to Do If Your Cat’s Third Eyelid Is Showing
Cats have a unique eye structure consisting of a third eyelid, also known as the nictitating membrane. Normally, this translucent membrane remains hidden from view. When it becomes visible, it can be an indication of underlying health issues. Knowing how to respond promptly is crucial for your cat's well-being.
Understanding the Third Eyelid
The third eyelid serves as an extra layer of protection for a cat’s eye, aiding in hydration and safeguarding against debris. It usually retracts into the corner of the eye and is rarely seen in a healthy, alert cat. When the third eyelid is visible without manipulation, it often raises concern.
Common Causes of a Visible Third Eyelid
- Illness or Infection: Viral or bacterial infections, such as conjunctivitis, often cause swelling and third eyelid protrusion.
- Dehydration or Weakness: Cats that are ill or dehydrated may have a more noticeable third eyelid.
- Pain or Eye Injury: Trauma to the eye or head may trigger the third eyelid to appear as a protective response.
- Haw’s Syndrome: A benign condition where both third eyelids are partially visible, often due to gastrointestinal issues.
- Parasites: Gastrointestinal parasites like worms can cause general discomfort, triggering the third eyelid response.
- Neurological Disorders: Nerve damage or brain-related issues can cause third eyelid dysfunction.
What You Should Do
Seeing your cat’s third eyelid can be alarming, but here are some practical steps you can take:
- Observe Other Symptoms: Check for signs of illness such as lethargy, loss of appetite, discharge from the eyes or nose, vomiting, or diarrhea.
- Keep the Eye Clean: If there’s discharge, gently clean around the eye with a damp cloth. Avoid using human medications unless prescribed.
- Provide Fluids: Ensure your cat is drinking water or offer a vet-approved electrolyte solution if dehydration is suspected.
- Monitor Duration: If the third eyelid doesn’t retract within 24–48 hours, or worsens, seek professional help immediately.
- Visit Your Veterinarian: A vet will perform a physical examination and may conduct eye tests or blood work to determine the cause.
Diagnosis and Treatment
Diagnosing the reason behind a visible third eyelid involves:
- Physical and Eye Examinations
- Blood Tests to identify infections or systemic issues
- Fecal Tests to detect parasites
Treatment depends on the cause and may include:
- Antibiotics or antivirals for infections
- Anti-inflammatory medication
- Eye drops or ointments
- Deworming medication for parasites
Prevention Tips
- Keep vaccinations and deworming schedules up to date
- Ensure a clean living environment
- Provide a balanced, nutritious diet
- Regular health check-ups with your veterinarian
When to Worry
Seek veterinary assistance immediately if:
- The third eyelid is out in both eyes simultaneously
- Your cat appears in pain or is rubbing at the eyes
- Other symptoms like lethargy or vomiting are present
- The condition persists beyond two days
Early intervention can prevent long-term damage and ensure your cat returns to full health quickly.
Conclusion
A visible third eyelid is often a concerning sign that should not be ignored. While it might not always signal a severe problem, it's often indicative of underlying health issues. Promptly consulting your veterinarian is the safest course of action. Taking note of accompanying symptoms and acting quickly can make all the difference in your cat’s recovery.
