Lower eyelid lashes short and less, about 50-75 root, length is about 6-8mm, slightly forward lower curved. Male lower eyelid lashes head-up 100 degrees-120 degrees, women are 10 degrees smaller than men. When you close your eyes, the upper and lower lashes are not intertwined. Upper and lower eyelid central part of the eyelashes longer, more, the shortest inner canthus. Eyelash hair follicle is rich in nerve, so eyelash is very sensitive, touch eyelash can cause blink reaction. There are sweat glands and sebaceous glands around the hair follicles, and their excretory ducts are in the eyelash follicles. The color of the eyelashes is generally darker than that of the hair, nor is it white because of old age (occasionally a number of elderly Bai), but also due to some disease, such as albinism, white.