![]() Cat color visionĭifferences between human vision and cat vision can be traced to the retina. So, how does cat vision measure up to human vision?īelow are a few characteristics of eyesight and how cats and humans compare. SEE RELATED: Eye discharge in cats and 5 reasons your cat’s eyes may be watering Cat vision: What cats seeīecause a cat’s eyes are anatomically different from a person’s eyes, the visual outcomes are also different. Vertical pupils help smaller cats gauge distance without moving their heads, which could potentially notify prey of their presence. They will sit and wait for the perfect moment to pounce on their prey and their vertically oriented pupils assist with this. ![]() (By contrast, big cats such as lions and tigers who have a height advantage over their domestic cousins, have round pupils like humans and dogs.)Ĭats are known as ambush predators who use stealth to capture prey because they don’t have speed or height. The signature “cat eye” pupil is associated with predators that are close to the ground, including your house cat and small wildcats, and thought to be related to their preferred hunting method. Cats have an elliptical pupil, which is characterized by horizontal slits rather than the perfect circles that make up human pupils. While the third eyelid is barely visible when a cat is alert and its eyes are completely open, it will naturally begin to close over the eye when a cat sleeps or blinks, increasing its visibility from the outside.Īnother key difference between the human eye and a cat’s eye is pupil shape. In fact, it is large enough to completely cover the cornea of a cat’s eye - it moves horizontally to wipe away dirt and debris and to spread tears across the surface of the eye. This internal eyelid plays a critical role in protecting the surface of the eye. This is made up of tissue folds that are covered in a unique mucous membrane ( conjunctiva) that rests behind the outer eyelid and in front of the cornea. One of the main differences between a human eye and a cat eye? Domestic cats and smaller wildcat species have a third internal eyelid called the palpebra tertia or nictitating membrane. While the structure of the eyes is pretty similar between cats and humans, there are a few key differences that affect how a cat’s eyes look and function. But when it comes to how we see the world around us, how dissimilar is a domestic cat’s view from a human’s? By Autumn Sprabary reviewed by Matthew Belden, DVMĬats are different from humans in many ways: They have four legs, are covered in fur and use their tongues to clean themselves.
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