People who have cats will definitely find that cats will be very active at night, walking around the living room, jumping up and down the house, but will not hit the door or wall. Then many shovelers have this question: Do cats have strong night vision? Do cats have night vision? With this question in mind, I will talk to you.
In fact, cats have night vision ability because there are more rod cells that are sensitive to weak light, so they have better low light visual functions. There are two types of visual cells in the eyes of cats, one is cone cells and the other is rod cells. If the cat is placed in a completely dark place, it is completely invisible like humans. However, the cat's eyes can gather weak light in the environment, so its night vision is much better than that of humans.
Whenever weak light enters the cat's retina, it will first project to this part, and then reflect it on the retina through this mirror, causing the light to receive the cat's eye cells to receive light stimulation again. At this time, the effect of light is enhanced, so the cat's ability to night vision is increased. Moreover, the cat's pupils will be enlarged in Hanzhong to collect more light. It is said that when cats receive light, they only need 1/6 of the person's, so they can see it very clearly, which means that cats do not necessarily like particularly bright light.
In fact, although cats have strong night vision capabilities, they are also afraid of light~