Meibography

Meibography is a specialized imaging technique that allows direct visualization of the meibomian glands—the oil-producing glands in your eyelids. This test is essential for diagnosing and staging meibomian gland dysfunction (MGD), one of the leading causes of dry eye disease. By seeing the glands' structure, your doctor can determine the extent of damage and guide treatment.

What Are Meibomian Glands?

Their Function

Meibomian glands:

• Located in the upper and lower eyelids
• Approximately 25-40 glands per lid
• Produce meibum (oil) that coats the tear film
• Prevent tear evaporation
• Essential for tear film stability

When They Malfunction

Meibomian gland dysfunction (MGD):

• Glands become blocked or atrophied
• Oil production decreases or quality changes
• Tears evaporate too quickly
• Results in evaporative dry eye
• Can lead to permanent gland loss

How Meibography Works

The Technology

Meibography uses infrared light to image the glands:

• Infrared penetrates the eyelid tissue
• Meibomian glands appear as dark structures against lighter tissue
• Modern devices capture images non-invasively
• Can be done with slit lamp attachment or standalone device

Types of Meibography

Non-Contact Infrared Meibography:

• Most common modern method
• No contact with the eye
• Quick and comfortable
• Integrated into many dry eye diagnostic platforms

Contact Meibography:

• Probe touches the everted eyelid
• Less commonly used now

The Imaging Process

During the Test

1. You sit at the imaging device
2. The technician everts (flips) each eyelid gently
3. Infrared camera captures images
4. Both upper and lower lids are photographed
5. Takes approximately 5 minutes total

What to Expect

• No drops needed
• Mild discomfort during lid eversion
• No pain
• No recovery time needed
• Results available immediately

What Meibography Shows

Normal Glands

• Parallel, straight glands
• Full length from lid margin to end
• No gaps between glands
• Uniform structure

Abnormal Findings

Gland Dropout (Atrophy):

• Missing glands or portions of glands
• Appears as lighter areas where glands should be
• Indicates permanent gland loss
• Graded by percentage of loss

Gland Shortening (Truncation):

• Glands don't extend full length
• Early sign of MGD
• May be reversible with treatment

Gland Distortion:

• Tortuous (twisted) glands
• Dilated glands
• Hook-shaped or irregular glands

Other Findings:

• Gland plugging (visible at lid margin)
• Ghost glands (outlines visible but atrophied)

Grading Meibomian Gland Loss

Meiboscore

A standardized grading system:

Grade	Gland Loss
0	No loss
1	<1/3 of glands lost
2	1/3 to 2/3 of glands lost
3	>2/3 of glands lost

Scores are calculated for each lid and can be summed for a total score.

Clinical Significance

Total Score	Severity
0-3	Mild
4-6	Moderate
7-12	Severe

Why Meibography Matters

Guides Treatment Selection

Based on gland findings:

Mild Dropout:

• Warm compresses
• Lid hygiene
• Lifestyle modifications

Moderate Dropout:

• More intensive home therapy
• In-office treatments (thermal pulsation, IPL)
• Possible medications

Severe Dropout:

• Aggressive treatment needed
• May have limited improvement potential
• Focus on preserving remaining glands

Monitors Treatment Response

Serial meibography can:

• Track gland changes over time
• Assess if treatment is preventing further loss
• Motivate patients to continue therapy
• Document improvement in gland structure

Early Detection

Who Should Have Meibography

Common Indications

• Dry eye symptoms
• Suspected MGD
• Chronic blepharitis
• Contact lens intolerance
• Rosacea (ocular involvement)
• Planning for refractive surgery
• Before cataract surgery (to optimize tear film)

Risk Factors for MGD

• Age (MGD increases with age)
• Contact lens wear
• Screen use/reduced blinking
• Rosacea
• Autoimmune conditions
• Certain medications

Meibography in Context

Part of Dry Eye Workup

Meibography is typically done alongside:

• Tear film assessment
• Lid margin examination
• Tear break-up time
• Osmolarity testing
• Inflammatory marker testing (MMP-9)

Complementary Information

Meibography shows structure (anatomy); other tests show function:

• Gland expression shows oil quality
• Tear break-up time shows tear film stability
• Symptoms questionnaires capture patient experience

Frequently Asked Questions

Is meibography uncomfortable?

Most people tolerate it well. The brief eyelid eversion may feel slightly unusual but isn't painful. There's no contact with the eye itself, and no drops are needed.

How often should I have meibography?

This depends on your condition. For monitoring MGD treatment, imaging every 6-12 months may be appropriate. Your doctor will recommend a schedule based on your specific situation.

If I have gland loss, will treatment help?

Treatment can help preserve remaining glands and improve the function of what's left. While lost glands typically don't regenerate, improving oil quality and flow from existing glands can significantly improve symptoms.

Can glands grow back?

Current evidence suggests mature meibomian glands don't regenerate once fully atrophied. This is why early detection and treatment are so important. Some shortening may be reversible if treated early.

What can I do to protect my meibomian glands?

• Regular warm compresses and lid hygiene
• Blink fully and frequently (especially during screen use)
• Stay hydrated
• Consider omega-3 fatty acids
• Treat underlying conditions (blepharitis, rosacea)
• Avoid conditions that worsen MGD (excessive screen time without breaks)

Does insurance cover meibography?

Coverage varies by insurance plan. Some plans cover it as part of dry eye diagnosis; others may not. Check with your insurance provider and ask your doctor's office about costs.

Related Treatments

Based on meibography findings, treatments may include:

• Warm compresses
• Lid hygiene
• Thermal pulsation (LipiFlow, iLux)
• Intense pulsed light (IPL)
• Meibomian gland probing
• Expression treatments

References