Chalazion
A chalazion is a painless lump on the eyelid caused by blockage of the meibomian glands. Learn the symptoms, causes, diagnosis and when to seek treatment.
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Denise DouthwaiteWhat Is a Chalazion?
A chalazion is a localised, often painless swelling that develops on the eyelid when one of the meibomian glands becomes blocked. These glands produce the oily layer of the tear film; when they become obstructed, the trapped oils trigger inflammation and form a firm lump within the eyelid.
A chalazion is not an infection, although it may begin as underlying gland dysfunction or inflammation, commonly associated with blepharitis or meibomian gland dysfunction (MGD).
Small chalazia may resolve on their own, but larger or persistent lumps may require medical or surgical treatment. Specialist assessment is recommended when a lump fails to settle within four to six weeks.
Symptoms of a Chalazion
Chalazia typically develop gradually over several days. Unlike a stye (hordeolum), they are not usually painful once formed.
Causes & Risk Factors
Chalazia develop due to blockage and inflammation of the meibomian glands. In rare cases, a persistent or atypical chalazion may mimic sebaceous gland carcinoma, requiring specialist assessment.
Meibomian Gland Dysfunction (MGD)
The most common cause of chalazion, thickened meibomian oils obstruct gland openings, leading to retained secretions and localised inflammation within the eyelid.
Blepharitis
Chronic eyelid margin inflammation disrupts gland function and increases the likelihood of blockage, making blepharitis one of the strongest risk factors for chalazion formation.
Rosacea
Facial skin inflammation associated with rosacea is strongly linked with meibomian gland dysfunction. Patients with rosacea are at significantly elevated risk of recurrent chalazia.
Previous Chalazia
Once meibomian glands have become blocked, recurrence in the same or adjacent glands is common, particularly in individuals with underlying gland dysfunction.
Poor Lid Hygiene
Accumulation of debris, excess oil, and crust along the eyelid margin can obstruct gland openings and predispose to chalazion formation.
Skin Conditions
Seborrhoeic dermatitis and acne vulgaris affect the eyelid skin and glands, contributing to altered secretion composition and an increased risk of blockage.
Stress, Dry Eye, and Environmental Factors
These factors worsen meibomian gland inflammation and increase the likelihood of gland obstruction, particularly in individuals already predisposed to chalazion.
Diagnosis and Assessment
Diagnosis is usually straightforward and based on clinical examination of the eyelid. Further investigation is uncommon unless the lesion fails to resolve or appears suspicious.
Clinical Eyelid Examination
The eyelid is examined carefully to identify the location, size, and consistency of the lump, and to distinguish a chalazion from other eyelid lesions such as a stye, cyst, or a more serious pathology.
Gland Blockage Assessment
The meibomian glands are assessed for evidence of obstruction, thickened secretions, and surrounding inflammation to confirm gland dysfunction as the underlying cause.
Evaluation for MGD and Blepharitis
Associated conditions, in particular blepharitis and rosacea, are identified and addressed as part of the management plan, reducing the risk of future recurrence.
Infection and Malignancy Screening
Signs of secondary infection are excluded. In atypical or persistent cases, specialist review is arranged to rule out sebaceous gland carcinoma, which can mimic a recurrent chalazion.
When to Seek Advice
You should book an assessment if you experience any of the following:
- The lump persists for more than four to six weeks
- The chalazion is large or growing
- Vision becomes blurred or distorted
- The eyelid becomes painful, hot, or red, possible signs of infection
- You experience frequent or recurrent chalazia
- You suspect a stye but symptoms worsen rather than improve
- You have an underlying condition such as rosacea, MGD, or blepharitis
“Urgent review is required if the eyelid becomes very swollen or painful, or if systemic symptoms develop. A persistent or atypical eyelid lump should always be assessed by a specialist.”
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Where to Find Us
Three convenient locations across West Yorkshire. Visit us for consultations, diagnostics, and treatments.
Bolton
136 – 140 Newport St
Bolton, Greater Manchester
BL3 6AB
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Woodlands, 4 Longbow Close
Huddersfield, HD2 1GQ
Book a Chalazion Assessment
If you have a persistent or troublesome eyelid lump, an early specialist assessment at The Eye Doctor Clinic ensures an accurate diagnosis and appropriate management, from conservative treatment through to surgical intervention if required.
