Chalazion
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A chalazion is a cyst in the eyelid that is caused by inflammation of the meibomian gland, usually on the upper eyelid. Chalazions differ from hordeolums in that they are usually painless apart from the tenderness caused when they swell up. A chalazion may eventually disappear on its own after a few months, though more often than not, some treatment is necessary.
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Alternative name
Meibomian gland lipogranuloma
Signs and symptoms
- Painful swelling on the eyelid
- Eyelid tenderness
- Sensitivity to light
- Increased tearing
Treatment
The primary treatment is application of warm compresses for 10 - 15 minutes at least 4 times a day. This may soften the hardened oils blocking the duct and promote drainage and healing.
Chalazia will often disappear without treatment within a month or so. If one continues to enlarge, it may need to be surgically removed using local anesthesia. This is usually done from underneath the eyelid to avoid a scar on the skin. Antibiotic eye drops are usually used several days before and after removal of the cyst, but are otherwise of little value in treating a chalazion.
A chalazion that keeps coming back should be biopsied to rule out tumor.
Complications
A large chalazion can cause astigmatism due to pressure on the cornea. This will resolve with resolution of the chalazion.
Prevention
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.
Source: http://www.nlm.nih.gov/medlineplus/ency/article/001006.htm