An eyelash or simply lash is one of the hairs that grow at the edge of the eyelid. Eyelashes protect the eye from debris and perform some of the same function as whiskers do on a cat or a mouse in the sense that they are sensitive to being touched, thus providing a warning that an object (such as an insect or dust mite) is near the eye (which is then closed reflexively). The Greek word for eyelash is blepharis. This word is often used as a root in biological terms (Blepharis, Kathablepharis, etc.) The eyelashes of the embryo develop between the 22nd and 26th week of pregnancy. Eyelashes take about seven to eight weeks to grow back if pulled out. Their color may differ from that of the hair, although they tend to be dark on someone with dark hair and lighter on someone with light hair. The follicles of eyelashes are associated with a number of glands known as the Glands of Zeis and the Glands of Moll. Long eyelashes are considered a sign of femininity in many cultures. Accordingly, some women seek to enhance their eyelash length artificially, using eyelash extensions. On the other hand, Hadza women are known to trim their own eyelashes. Kohl has been worn as far back as the Bronze
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