Eyelashes are short, hair-like structures that grow along the edges of the eyelids. They serve several important functions, including protecting the eyes from dust, debris, and small particles. Eyelashes also help to reduce the amount of light that enters the eyes, which can be beneficial in bright conditions. Each eyelid typically has about 100 to 150 eyelashes, which can vary in length and thickness among individuals. The growth cycle of eyelashes includes phases of growth, rest, and shedding, similar to other hair on the body. Proper care can help maintain healthy eyelashes and prevent breakage.