How many facets do butterflies have?

Butterflies have compound eyes that are made up of thousands of tiny lenses called ommatidia. Each ommatidium contributes to the butterfly's overall ability to see the environment, allowing them to detect movement and see a wide range of colors. While the exact number of facets can vary by species, it typically ranges from several thousand to about 17,000 facets per eye. This complex eye structure enhances their visual perception, crucial for navigation and foraging.