Why do eyelashes grow?

All parts of our body and its integuments perform certain functions. In this case, the eyelashes have a protective function. These small hairs, which on average have a “lifespan” of about 90 days and grow along the edges of the lower and upper eyelids, are an excellent barrier that protects the eye itself from external mechanical influences. That is, from a wide variety of dust, from particles of dirt, sand, and so on, as well as from small insects.