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Poliosis circumscripta, commonly referred to as a "white forelock", is a condition characterized by localized patches of white hair due to a reduction or absence of melanin in hair follicles. Although traditionally associated with the scalp, poliosis can affect any hairy area on the body, including eyebrows, eyelashes, and beards.
Trichiasis in dogs is hair from the eyelid growing in the wrong direction and rubbing on the eye, causing irritation. It usually occurs at the lateral upper eyelid, especially in the English Cocker Spaniel. [3] Trichiasis also refers to hair from a nasal fold rubbing on the eye.
Children with this syndrome are often found to have long eyelashes, bushy eyebrows and synophrys (joined eyebrows). Body hair can be excessive and affected individuals are often shorter than their immediate family members. They present a characteristic facial phenotype. [2]
Cocaine abuse has shown hair loss due to the hot vapors traveling up causing burning of the hair of the eyebrows or eyelashes. Radiotherapy and chemotherapy can cause hair loss due to the eradication of the hair cells, especially when used to treat ocular tumors. Genetics: Some of the diseases listed in the causes can be inherited.
Women apply mascara expecting it to give them long, luscious lashes -- not to cause them to fall out. One Florida woman told ABC she found this out the hard way after using CoverGirl's Bombshell ...
The glands of Zeis service the eyelash. These glands produce an oily substance that is issued through the excretory ducts of the sebaceous lobule into the middle portion of the hair follicle . In the same area of the eyelid, near the base of the eyelashes are apocrine glands called the " glands of Moll ".
The whisker-like hairs are so long that she can hold them together.
Piebaldism refers to the absence of mature melanin-forming cells (melanocytes) in certain areas of the skin and hair. It is a rare autosomal dominant disorder of melanocyte development. [ 2 ] : 867 Common characteristics include a congenital white forelock , scattered normal pigmented and hypopigmented macules and a triangular shaped ...