Cats’ eyes are relatively small, which is determined by their survival strategy and evolutionary history. Cats are nocturnal animals, and their eyes can focus better in low-light conditions and have strong night vision. To achieve this, a cat's eyes need a large number of photoreceptor cells that can be placed inside the tiny eye. In addition, cats have a special structure called a "pupil" that helps them focus in low-light conditions. The pupil is a rolling ball-like structure in the eye that automatically adjusts focus as the distance of an object your cat sees changes. This structure helps cats better track moving targets, such as prey, in low-light conditions.
In general, the reason why cats’ eyes are relatively small is because they are nocturnal animals and need to operate in dark light. Has strong night vision ability under conditions.
