Symptom: Chalazion (Lump in Eyelid)

A chalazion is a lump of the lid that is caused by obstruction of the drainage duct of an oil gland within the upper or lower eyelid. This lump may increase in size over days to weeks and may occasionally become red, warm, or painful.The gland involved in the formation of a chalazion is a modified oil gland (meibomian gland) that lies within the eyelid. There are about 30-40 of these glands within each of the upper and lower lids. These glands secrete oil into the tears. When one of these glands becomes blocked, it can increase in size and cause a visible lump.Although a stye is also a lump in the eyelid caused by obstruction of an oil gland, a chalazion is not a stye. A stye, or hordeolum, represents an acute infection of the gland. A chalazion is not an infection but is an inflammation of the area. Inflammation is a process in which the body reacts to a condition and produces swelling, redness, pain, or warmth. A stye is usually more painful than a chalazion and may appear infected.

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Each of the oil glands, called meibomian glands, produces oil that flows out of the gland into the tears. The oil exits from each gland through a tiny circular opening just behind the eyelashes of the upper and lower lids of both eyes. A chalazion is caused by the oil in the gland becoming too thick to flow out of the gland or the opening of the gland being obstructed. Without anywhere to go, the oil builds up inside the gland and forms a lump in the eyelid. The gland wall may break, releasing the oil into the tissue of the eyelid, causing inflammation and sometimes scar tissue. Alternative names for a chalazion include conjunctival granuloma, conjunctival lipogranuloma, or meibomian gland lipogranuloma.

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Chalazion (Lump in Eyelid) - Treatment What was the treatment for your chalazion? View 26 Comments Share Your Story Chalazion (Lump in Eyelid) - Pain Did your chalazion cause any pain? 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Read What Your Physician is Reading on Medscape Chalazion »A chalazion (Greek for hailstone) is a lipogranuloma of either a meibomian gland or a Zeis gland. Read More on Medscape Reference »
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Signs and Symptoms

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