Definition

A chalazion is a non-infectious, hard lump that forms on the eyelid.

Chalazion Copyright © Nucleus Medical Media, Inc.

Causes

A chalazion can form when the oil produced from a gland of the eyelid thickens and can no longer flow. When the oil hardens, it blocks the gland and causes a lump to form in the eyelid. This condition can recur.

Risk Factors

Factors that may increase your chance of a chalazion:

• Seborrheic dermatitis
• Acne rosacea
• History of chalazia or styes
• Inflammation of the eyelids— blepharitis

Symptoms

The initial symptom is a small swelling on the eyelid. It may look like a stye. It may or may not be painful. After a few days, the lump on the eyelid often begins to harden.

A chalazion can rarely cause complications, which may include:

• Localized infection at the site of the chalazion (stye)
• Visual problems due to the chalazion pushing against and distorting the shape of the eye

Diagnosis

You will be asked about your symptoms and medical history. An eye exam will be done. Rarely, a sample of fluid from the chalazion is taken and tested in a lab.

Treatment

A chalazion will often disappear on its own. If needed, treatment may include:

Prevention

Eyelid hygiene can prevent the development of a chalazion:

• Always wash your hands before touching your eyes.
• Always use a clean facecloth when washing your face.
• Wash your eyelids with warm water and mild soap.
• Never squeeze or poke your eye.
• Do not rub your eye.
• Make sure your contacts are clean before putting them in.