True compound eyes, built from thousands of individual lenses called ommatidia, belong to insects, crustaceans, and some myriapods. Mites don't have them. When mites have eyes at all, they're simple eyes called ocelli – single-lensed structures, usually arranged in one to three pairs. And plenty of mites don't bother with eyes. This image was captured with a scanning electron microscope, which fires a beam of electrons at the sample rather than light, producing a super-detailed black-and-white image.