Chalazion
Chalazion
Chalazion (pronunciation: /kəˈleɪziən/) is a medical term referring to a small, usually painless, lump or swelling that appears on your eyelid. A chalazion can develop when a meibomian gland at the edge of an eyelid becomes blocked. Unlike a stye, a chalazion usually isn't caused by bacteria.
Etymology
The term "chalazion" comes from the Greek word "chalaza" which means small lump or swelling. It was first used in medical literature in the 19th century.
Symptoms
A chalazion often starts as a small red area on your eyelid. Over a few days, it may change to a painless lump or swelling. If the chalazion gets large, it may press on your eye and cause blurry vision. Rarely, the whole eyelid might swell.
Causes
A chalazion is caused by the blockage of the meibomian gland. These glands make oil that lubricates the surface of the eye. Sometimes the openings of these glands become clogged and the oil can't get out. The gland then swells and forms a lump or chalazion.
Treatment
Treatment for a chalazion is not always necessary. In many cases, it will disappear without treatment after a month or two. If the chalazion causes severe symptoms or lasts for a long time, treatments may include:
Related Terms
External links
- Medical encyclopedia article on Chalazion
- Wikipedia's article - Chalazion
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