Eyelashes

Eyelashes are a feature of the human body that serve a protective function for the eye. They are a type of hair that grows at the edge of the eyelid and work to keep debris from entering the eye.

Anatomy

Eyelashes grow from the hair follicles located on the eyelids. They are made up of a protein called keratin and are coated with a layer of oil from the sebaceous glands at the base of the eyelash. This oil helps to keep the eyelashes from drying out.

Function

The primary function of eyelashes is to protect the eyes from small particles such as dust, sand, and debris which can harm the eye. They also serve to shield the eyes from bright light and water. When the eyelashes sense a threat, they reflexively close the eyelid to protect the eye.

Health and Disorders

There are several health conditions and disorders associated with the eyelashes. Blepharitis is an inflammation of the eyelids which can result in loss of eyelashes or abnormal growth. Trichiasis is a condition where the eyelashes grow inward, causing discomfort and potentially damaging the eye. Distichiasis is a condition where an extra row of eyelashes grows from the oil gland in the eyelid and can cause irritation to the eye.

Care and Maintenance

Proper care and maintenance of the eyelashes can help to prevent these conditions. This includes regular cleaning of the eyelids and eyelashes to remove any debris and excess oil. There are also cosmetic products available to enhance the appearance of the eyelashes, such as mascara and eyelash extensions.

See Also

• Eye
• Eyelid
• Hair follicle
• Keratin
• Sebaceous gland
• Blepharitis
• Trichiasis
• Distichiasis
• Mascara

Eyelashes Resources
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