Why Is My Cat Squinting? Common Cat Eye Problems

Your cat’s eyes are more than just beautiful—they’re an important indicator of overall health. Persistent squinting in cats can signal discomfort, pain, or even vision problems. While occasional squinting may be harmless (like reacting to bright light), continuous squinting is worth paying attention to.

If your cat won’t stop squinting, schedule an exam with your veterinarian. In the meantime, here are the most common reasons behind cat eye squinting.

1. Obstruction in the Eye

If your cat’s squinting suddenly, especially if it’s just happening to one eye, there’s a good chance she’s got something in it! 

Try to hold her eyelid open to see if you can see any dirt, plant matter, or fur. Contact your veterinarian to schedule an exam to safely remove any foreign object(s) from the eye.

2. Abrasion on the Eye

Cats can injure their eyes during rough play, fights, or accidents. Has your cat been involved in any kind of traumatic incident that could have resulted in a scratched eye? 

A scratched cornea can cause ongoing squinting. Your veterinarian may recommend medicated drops or protective treatment, such as an eye patch, to allow healing.

3. Conjunctivitis (Pink Eye)

Conjunctivitis is inflammation of the pink membrane surrounding the eye. It may affect one or both eyes and can occur alongside other problems like ulcers or corneal inflammation. 

Symptoms include redness, swelling, and eye discharge. If you notice these, book a vet visit promptly.

4. FIV (Feline Immunodeficiency Virus)

Feline Immunodeficiency Virus is a slow-acting virus that weakens the immune system, making cats more prone to eye infections and uveitis, which may lead to squinting. Many owners don’t realize their cat has FIV until secondary symptoms appear. Your veterinarian can test for and manage this condition.

Want to learn more about common feline diseases? Here’s a complete guide on Chronic Kidney Disease in Cats. 

5. Upper Respiratory Infection

When your cat’s respiratory system is compromised, you may notice her squinting frequently in both eyes. This is because the sinuses are so closely linked to the eyes. If your cat shows signs like sneezing, coughing, or watery eyes, a vet exam can help confirm and treat the infection.

6. Loss of Vision

Just like humans, animals squint when they’re trying to see better. If you notice your cat squinting when you get her attention or when she’s looking closely at something, she may be losing her sight. Take her to the vet for a thorough examination to ensure her vision problems aren’t a symptom of a bigger issue.

Could Squinting Signal Pain Beyond the Eyes?

While squinting is often linked to eye conditions, it can also be part of your cat’s broader “pain language.” Cats rarely cry out when they hurt—instead, they change posture, hide more, or subtly narrow their eyes. Learn more in our guide: 7 subtle signs your cat is in pain.

So, if your cat’s squinting has you worried, reach out for professional help. You know your cat best and if you think something’s up, having a thorough examination performed will give you both some peace of mind.