This is cool…
The next time you catch your cat staring at you with its big, luminous eyes, try this: Blink at kitty very slowly. There’s a good chance your cat will blink right back.
Many feline fanciers suspect that cats communicate with their eyes. And animal shelter workers will swear that if you blink slowly at even a feral cat, the animal often calms down. Cats also use their eyes to intimidate prey and even each other, as a way of establishing dominance.
And for their size, this animal has a lot of eye to work with. If our eyes were as big as those of any cat, in terms of their largeness per head size, our eyes would be eight inches long, each. Even more, a cat’s eyes also bulge slightly, giving them excellent peripheral vision.
You may have noticed that, while you stumble around in the dark looking for the light switch, your cat is calmly navigating its way around the furniture. You may have also noticed that sometimes in a dim room, your cat’s eyes will glow eerily. As nocturnal predators, cats have developed excellent night vision. Cats have vertical irises, which can narrow to the tiniest sliver in bright light or open to cover 90 percent of their eye area, enabling the pupil to capture even the smallest amount of light. In addition, a cat has a shiny membrane in the back of the eyes called the “tapetum lucidum,” which helps to reflect light back through the retina, enabling the animal to see better in low light situations. That said, there is a limit: cats still can’t see in total darkness.