A cat’s eyes change three times a day, that is, they look like date pits in the morning, slits at noon, and round balls at night.

1. This is caused by the changes in the cat’s pupils. The cat’s pupils will change according to different light and emotions.

2. The pupil of the cat’s eyeball is relatively large, and the sphincter contraction ability of the pupil is also particularly strong. Cats can adjust their pupils to see clearly in different lighting conditions.

3. There is a vertical pupil in the middle of a cat’s eye, which regulates the amount of light entering the eye. When the catalgia is strong, the upright pupils of the cat's eyes will tighten and narrow, which plays a role in protecting the eyes.

4. Under moderate sunlight in the morning, a cat’s pupils will look like date pits. Under strong sunlight at noon, the cat’s pupils can shrink very small, like a thread. And in the dark at night, the pupils can open as round and big as the full moon.

5. Because cats’ pupils have good contraction ability and are very sensitive to light, they can see things clearly under conditions where the light is too strong or too weak, which is more helpful. Cats catch prey.

Why are cats’ eyes green:

1. The color of cat’s eyes is actually related to pigmentation. The color of cat’s eyes we usually see is determined by the color of the cat’s eyes. The color of the cornea shows through the retina of the fundus of the eye. The color of cat eyes is related to retinal and hair follicle deposition. Therefore, you can simply judge that a cat with green eyes is a black-haired cat. Black cats usually have a pair of green eyes. The different eye colors of cats can be initially judged from their coat.

2. This is a common physiological phenomenon among wild cats. There are many special lenses at the bottom of the eyes of many cats. These lenses have strong light-gathering capabilities and can gather the weak and scattered light around them, aggregate them into bundles, and reflect them concentratedly. Animals with such glasses They generally have a strong ability to be nocturnal. They can identify objects with a small amount of light, and from the outside it seems like their eyes are glowing. Most of the animals with this kind of glasses are nocturnal animals, including wolves, cats, tigers, leopards, owls, etc.