Compound eyes are a type of visual system found in many arthropods, such as insects and crustaceans. These eyes are made up of thousands of tiny units called ommatidia, each functioning as a separate visual receptor. This structure allows for a wide field of view and the ability to detect motion quickly, making them effective for navigating their environments. The design of compound eyes enables the detection of light and movement rather than fine detail. While they may not provide sharp images like human eyes, they excel in sensing changes in light and movement, which is crucial for survival in the wild.