How Cats See the World



Human and cat vision differ significantly when compared because of the retina, a layer of tissue at the back of the eye that contains cells known as photoreceptors. When comparing human and cat vision, the retina is the most significant distinction between the two. Light rays are converted into electrical impulses by photosensing cells in the retina, which are then processed by nerve cells and relayed to the brain, where they are interpreted as the images we see.

Rods and cones are the two types of photoreceptor cells that have been identified. It is the rods that are in charge of governing peripheral and night vision. They are capable of discriminating between different shades of gray and different levels of brightness and contrast. Cones are in charge of regulating day vision and color perception in the human eye.

Unlike other animals, cats (and dogs) have a large number of rod receptors and a small number of cone receptors, making them one of a kind in the animal kingdom. It is the polar opposite of this in humans, which explains why we are less adept at distinguishing colors at night while being more adept at identifying colors during the daytime.

As soon as the eyes are focused on a single point, the visual field encompasses the entire region that is visible in the immediate vicinity of that point. It encompasses all that can be seen straight ahead of you, as well as everything that can be seen above, below, and to the sides of your body. With a visual field of 200 degrees, cats have a field of vision that is somewhat greater than the normal human field of vision, which is 180 degrees. This is in comparison to the human vision field, which is 180 degrees wide.

In the medical field, the term “visual acuity” refers to the sharpness with which one’s eyesight can be seen. Visual acuity of 20/20 is the average human’s visual acuity. A cat’s visual acuity can range from 20/100 to a 20/200, depending on the breed. This means that a cat only has to be 20 feet away in order to see what an average human can see from 100 to 200 feet away in the same environment when the cat is 20 feet away. This is the reason why the image at the bottom of the page is so foggy and blurry in appearance.





The idea that cats can only see in shades of gray and are unable to distinguish between different hues is widely held among the public. Trichromats are individuals who have three different types of cones in their eyes, which allows them to see in three different colors: red, green, and blue. Trichromats are people who have three different types of cones in their eyes. This holds true for cats as well; they are trichromats, albeit not in the same way that humans are. The eyesight of a cat is quite comparable to the vision of a colorblind person in terms of color. When it comes to blue and green colors, they can tell the difference, but they may be confused by reds and pinks. These may appear to be a deeper shade of green in appearance, whereas purple may appear to be a deeper shade of blue in appearance.

When it comes to color saturation and richness, cats are unable to discern the same levels of intensity as we are.

A cat’s nearsightedness suggests that it has difficulties detecting items that are located at a distance. When hunting and capturing animals, being able to recognize nearby things would be extremely advantageous to the hunter.




Night vision:

Cats have better night vision than humans due to the fact that they have a bigger number of rods in their retina that are sensitive to low light levels than humans. Their vision in the dark is limited because they are unable to distinguish minute details or brilliant colors. As a result, cats are able to see with around one-sixth the amount of light that humans require.

In addition, the tapetum is present, which is a structure behind the retina that is thought to improve cats’ night vision by increasing contrast sensitivity, according to some researchers. It is believed that the tapetum’s cells operate as a mirror, reflecting light that passes between the rods and cones back to the photoreceptors, giving them a second chance to pick up the little quantity of light that is accessible during the nighttime. As a result, cats’ eyes are lighted when they are outside in the dark.