Cat eye color is determined by the amount and distribution of melanin in the iris (the colored part of the eye). While brown eyes have a lot of melanin, blue eyes contain very little.

These 11 photos of kittens with blue eyes will cause you to feel all the things. Grab the tissues if you tend to cry from pics of adorable animals.

Related: Maine Coon Kitten Goes to Battle with Brother for Access to Mom's Milk. Blue Eyes Are a Rarity in Maine Coon Cats. This little one is a doll, but as it turns out, her eye ...