Do cats have blue eyes when there def?

That's an interesting question, but it's not quite accurate to say that cats have blue eyes "when they're def." Here's why:

* "Def" isn't a word. It's likely you meant to say "deaf."

* Eye color and deafness are not directly linked. While some breeds of cats, like white cats with blue eyes, are more prone to deafness, it's not a guaranteed connection.

Here's a breakdown of the relationship between eye color and deafness in cats:

* White cats with blue eyes: These cats have a higher chance of being deaf in one or both ears due to a genetic link called the "W" gene.

* Other cats with blue eyes: Cats of other breeds or colors with blue eyes may still be deaf, but it's not as statistically likely as in the white cats mentioned above.

* Deafness can occur in any cat, regardless of eye color. Other factors can lead to deafness, such as infections, injuries, and aging.

It's important to remember:

* Don't assume a cat is deaf based on eye color alone.

* A veterinarian can determine if a cat is deaf through a hearing test.

If you have a cat with blue eyes and are concerned about deafness, consult your veterinarian for a proper assessment.