The 눈 (eye) is a complex organ that allows humans and many animals to perceive light and visual information. It consists of several parts, including the cornea, lens, retina, and iris. The eye captures light and focuses it onto the retina, where photoreceptor cells convert the light into electrical signals sent to the brain. Eyes come in various shapes and colors, influenced by genetics and environmental factors. They play a crucial role in daily activities, such as reading, driving, and recognizing faces. Proper eye care, including regular check-ups and protection from harmful UV rays, is essential for maintaining good vision throughout life.