Causes of big and small eyes in cats

1. Genetic issues: If a cat has big or small eyes since childhood, it is basically caused by genes.

2. Feline nasal branch: If the cat has symptoms such as coughing, fever, sneezing, runny nose, and eye discharge in addition to big and small eyes, it is most likely to have feline nasal branch.

3. Foreign body irritation: When there is foreign body in the cat's eyes, such as insects, dust, eyelashes, etc. accidentally flying into the cat's eyes, it will cause eye inflammation, thus irritating the single eye to become red and swollen. Unable to open, resulting in large and small eyes.

4. Caused by trauma: Most cats are lively and active and have a strong sense of defense against their own things. If a cat's eyes are accidentally stabbed by a foreign object when it is active, or its eyes are accidentally scratched due to conflicts and fights with other cats, resulting in eye injuries, redness and swelling, it may also cause big or small eyes.

5. Caused by getting angry: If the cat is fed a single dry cat food or too much canned meat for a long time, and the cat does not like to drink water, it will cause internal Without fiber and water, the cat will get angry and have watery eyes.

6. Parasites: Internal parasites in cats can cause the cat’s eyes to appear large or small.

7. Conjunctivitis or keratitis: Conjunctivitis and keratitis are mostly caused by bacterial infections. If a cat has only one eye infected with bacteria, the eyes will become larger and smaller.

8. Rhinitis: Inflammation in the nose will spread to the eyes, causing the eyes to become larger and smaller.