Eyelash

An eyelash (also called lash) (Latin: cilia) is one of the hairs that grows at the edges of the top and bottom eyelids, spanning outwards and away from the eye. The lashes grow in up to six layers on each of the upper and lower eyelids. Eyelashes serve to protect the eye from debris, dust, and small particles, and are highly sensitive to touch, thus providing a warning that an object (such as an insect) is near the eye (which then closes reflexively). The eyelid margin from which lashes grow is among the most sensitive parts of the human body, with many nerve endings enveloping the roots of the lashes, giving it sensitivity to very light tactile input via the lashes, enabling it to trigger the blink reflex when touched. Eyelashes are also an important component of physical attractiveness, with prominent lashes drawing attention to the eyes.