Slow-growing swelling of the upper or lower eyelid usually caused by a blockage in the oil glands in the eyelid. A chalazion is generally a painless, slowly enlarging nodule on the eyelid formed by inflammation of the meibomian glands. It is basically a chronic granulomatous enlargement of the meibomian glands of the eye-lid. The meibomian glands in the eyelid serve the purpose of lubricating the margins of the eyelids, by producing a layer of tear. Due to acute or sub acute inflammation of the eyelid, which may be due to a stye, there occurs an obstruction of the duct of the meibomian gland, leading to retention of the tears and swelling of the lid. In most cases chalazion may appear after a stye. Chalazion is essentially a benign enlargement and not cancerous in nature.
Alternative Names of Chalazion are: Meibomian gland lipogranuloma
Complications of Chalazion
Causes of Chalazion
A chalazion is caused by a blockage in a meibomian gland duct in the eyelid. The duct may become blocked because of an infection, such as a meibomian stye (internal hordeolum) or an abnormal growth, such as a tumour (although this is rare). Usually blockages rupture by themselves, and the oily fluid trapped inside drains away naturally. However, if this doesn't happen, a chalazion forms.
Signs & Symptoms of Chalazion
Diagnosis of Chalazion
Treatments of Chalazion
Prevention of Chalazion
Proper cleansing of the eyelid may prevent recurrences in people prone to chalazia. Cleaning the eyelash area with baby shampoo will help reduce clogging of the ducts.
When to seek Medical Advice