It’s no secret that the vision of cats in our world is essential different from human perception. However, what is is that a difference? 
Photos from open sources
It turns out that the eyes of cats catch light particles at the lowest levels that are not accessible to human vision, and it is thanks to this, the eyes of cats glow in the dark. While people able to see bright colors only in the daytime, feline have an advantage because they have excellent night vision. In addition, cats have a wider field of view – about 200 degrees, and endowed with a wider peripheral range. Night animals Cats are twilight animals, that is, they more active at dawn and dusk. Therefore their eyes in need of good night vision, eight times more sensitive to low light than people’s eyes. Moreover, cats eyes are elliptical, larger than the cornea and tapetum (a layer of tissue that displays light back onto the retina). Tapetum can also shift light waves, which helps cats perfectly see potential prey and other objects at night. Color vision However, in daylight, cats’ eyesight an order of magnitude lower than human. The retina of our eye is at 10 times more cones (light receptors), which in bright light function much more efficient than cat receptors. Our eyes also have three types of cones, allowing you to see a wide range colors and their shades, while cats in this matter substantially limited. Some experts believe that color cats’ vision allows them to distinguish only blue and gray colors, in while others believe that cats’ color vision is identical dogs, but with fewer shades and less color saturation. Dogs cannot distinguish between red yellow, green and orange colors, but, for example, fish, on the contrary, sees the world in the ultraviolet range that human inaccessible to the eye. Myopia Thanks to many cones human eyes people have the ability to see with much greater resolution. We clearly see objects at a distance of 30 up to 60 meters, while cats clearly see objects that are at a distance not exceeding 6 m, as well as poorly visible objects, located very close. This is because the eyes of cats there is not enough muscle needed to change the shape of the eye lenses.
Translation by Sergey Vasilenkov
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