Dry eye is often an oil gland problem

The meibomian glands are tiny oil glands inside your eyelids. They help keep your tears stable and prevent them from evaporating too quickly.

When these glands become blocked, inflamed, or damaged, the tear film breaks down between blinks. This can cause burning, watering, redness, irritation, and blurry vision that comes and goes.

This condition is called Meibomian Gland Dysfunction, or MGD.

Meibomian Gland Dysfunction Treatment in Charlottesville

Why the oil layer matters

Your tears need more than water to keep your eyes comfortable.

A healthy tear film depends on:

Water

Provides moisture to the surface of the eye.

Oil

Helps keep tears from evaporating too quickly.

Blinking

Spreads the tear film evenly and helps the oil glands release their oils.

When the meibomian glands are not working well, the oil layer becomes unstable. Your eyes may still make watery tears, but those tears evaporate too quickly. That is why MGD can cause dryness, burning, watering, redness, and fluctuating vision — even when your eyes do not feel “dry” all the time.

Non-invasive tear breakup testing helps us evaluate how stable the tear film is between blinks. In this video, the orange and red areas show where the tear film is degrading or breaking up too quickly. When the oil layer is unhealthy, the tear film may become unstable, contributing to burning, watering, irritation, and fluctuating vision.

What is meibomian gland dysfunction?

Meibomian gland dysfunction, or MGD, happens when the oil glands in the eyelids do not release healthy oil normally. Each eyelid has approximately 25–30 meibomian glands, or about 50–60 glands per eye, and these glands work together to maintain the tear film’s protective oil layer.

In a healthy tear film, the meibomian glands release a thin, clear oil each time you blink. With MGD, that oil can become thick, cloudy, waxy, or difficult to express. The gland openings may also become blocked or inflamed.

When the oil does not flow well, the tear film becomes unstable and evaporates too quickly. This can lead to dryness, burning, watering, redness, irritation, and blurry vision that comes and goes.

Close-up image of thickened waxy meibum along the lower eyelid margin from meibomian gland dysfunction

Thickened meibomian gland oil can become stagnant and waxy. After light and heat-based therapy, gentle gland expression helps clear this material so healthier oil can flow into the tear film.

Why are my eyes watering if they’re dry?

Watering is often the eye’s reflex response to irritation.

With MGD, the tear film may evaporate too quickly because the oil layer is unstable. The eye may make extra watery tears, but those tears do not always solve the underlying gland problem.

Common symptoms of MGD

Meibomian gland dysfunction can feel different from patient to patient. Some people feel dryness or burning, while others notice watering, redness, or vision that changes throughout the day.

MGD can affect the gland structure over time

Meibography images showing healthy and damaged meibomian glands.

Meibomian gland dysfunction is not only about daily comfort. Over time, blocked or inflamed glands can begin to change structurally.

These meibography images show how meibomian gland dysfunction can progress. Healthy glands appear long and organized. With MGD, glands may become shortened, distorted, or lost over time, which can reduce healthy oil flow into the tear film.

Healthy meibomian glands usually appear long and organized. With MGD, the glands may become shortened, distorted, or partially lost. This is called gland atrophy or gland dropout.

Treatment cannot always restore glands that are fully lost, but it may help improve the function of glands that are still present. It may also help reduce ongoing inflammation and support healthier oil flow over time.

This is one reason we try to identify and treat MGD before gland damage becomes more advanced.

Why does MGD happen?

MGD usually does not come from one single cause. Most patients have a combination of gland blockage, inflammation, blink changes, and environmental stress affecting the tear film.

Age

Meibomian gland function can change over time. The oil may become thicker, and some gland structure can be lost with age.

Screen use

When we use computers, phones, and tablets, we tend to blink less often and less completely. Less blinking means less natural oil release from the glands.

Rosacea and inflammation

Ocular rosacea can affect the eyelids and oil glands, even when facial redness is mild. This can contribute to redness, irritation, and poor oil quality.

Tiny blood vessels along the eyelid margin showing signs of ocular rosacea-related inflammation.

The tiny blood vessels along the eyelid margin are a common sign of ocular rosacea-related inflammation. This inflammation can affect the oil glands and contribute to meibomian gland dysfunction.

Contact lenses

Contact lenses can increase tear film stress and may make MGD symptoms more noticeable, especially dryness, irritation, or lens fogging.

Lid margin buildup

Bacteria, Demodex, oils, and makeup along the lashes can worsen eyelid inflammation and interfere with healthy gland function.

Eyeliner and makeup along the eyelid margin near the meibomian gland openings.

Makeup applied along the “water line” or used for “tight lining” can block the meibomian gland openings. Over time, this can interfere with healthy oil flow and contribute to inflammation and gland dysfunction.

Dry environments

Fans, heating, air conditioning, wind, and low humidity can increase tear evaporation and make symptoms worse.

How we evaluate MGD

A dry eye evaluation allows us to look more closely at the eyelids, tear film, and meibomian glands.

During the exam, we evaluate whether the gland openings are blocked and whether the oil is clear and flowing normally or thick, cloudy, oily, or waxy.

As part of this evaluation, we may gently palpate the eyelids to see how easily the glands release oil. This helps us determine whether the glands are flowing well, partially clogged, or producing thicker meibum that is not moving normally.

We also look for other factors that can contribute to MGD, including eyelid inflammation, rosacea-related changes, Demodex, tear film instability, and irritation on the surface of the eye.

Depending on your findings, testing may include:

  • Examination of the eyelid margins

  • Assessment of meibomian gland openings

  • Gentle gland palpation to evaluate oil flow and quality

  • Tear film stability testing

  • Ocular surface staining

  • Screening for blepharitis, Demodex, and ocular rosacea

  • Meibography imaging to evaluate gland structure

Meibography shows what symptoms cannot

Meibography allows us to look at the structure of the meibomian glands inside the eyelids.

This imaging can show whether the glands are healthy and organized, shortened, distorted, or showing signs of dropout. It helps us understand how advanced the MGD is and what type of treatment plan makes the most sense.

Oil quality matters

Healthy meibomian oil should flow relatively easily. With MGD, the glands may release very little oil, or the oil may appear thick, cloudy, oily, or waxy. Evaluating the quality of the oil helps guide treatment.

Drops can help, but they may not fix the gland problem

Artificial tears may provide temporary relief, but MGD usually starts with poor oil flow from the eyelid glands. If the oil layer is unstable, tears can still evaporate too quickly.

Treating MGD means looking beyond moisture and addressing the glands that help stabilize the tear film.

Treatment depends on what your glands need

MGD treatment is individualized. Some patients need a simple home-care and maintenance routine. Others need in-office treatment to help improve oil flow, reduce inflammation, and support long-term gland function.

The right plan depends on what we find during your dry eye evaluation, including how well the glands are flowing, whether the oil is clear or thick and waxy, and whether inflammation or rosacea is present.

Treatment may focus on one or more of the following goals:

Improve oil flow

When the oil inside the glands becomes thick or waxy, it may not release normally with blinking. Treatment may focus on softening the oil and helping it move more freely.

Reduce inflammation

MGD often overlaps with eyelid inflammation, blepharitis, and ocular rosacea. Reducing inflammation can help calm the eyelids and improve tear film stability.

Support long-term gland function

Treatment is not only about short-term comfort. It is also about supporting the glands that are still functioning and reducing the risk of further decline.

Before and after meibography showing improvement in a previously blocked central meibomian gland channel after IPL treatment.

Meibography helps us evaluate gland structure and oil flow patterns over time. This comparison shows improvement in the appearance of a previously blocked central meibomian gland channel following IPL treatment.

MGD is one of the most common causes of dry eye. You can also learn more about our broader approach to Dry Eye Treatment in Charlottesville.

Once we understand what is driving the MGD, treatment can be directed toward the specific problem — blocked glands, poor oil quality, inflammation, or long-term gland support.

Some patients need one main treatment approach. Others do best with a combination of home care, in-office treatment, and prescription therapy depending on how the glands look and how well the oil is flowing.

Many patients do best with a customized combination approach.

Because MGD can involve blocked glands, poor oil quality, inflammation, rosacea, and gland dropout, treatment is often tailored to what your glands need rather than one-size-fits-all.

A realistic plan for long-term gland health

MGD is usually managed rather than permanently cured.

Our goal is to improve oil flow, reduce inflammation, support the glands that are still functioning, and create a maintenance plan that is realistic for your daily life.

For some patients, that means home care and monitoring. For others, it may include periodic in-office treatment to help keep the glands flowing and reduce the risk of symptoms returning.

Your Questions, Answered

Schedule Your Dry Eye Evaluation in Charlottesville

If your eyes feel dry, irritated, watery, red, or tired, meibomian gland dysfunction may be part of the problem.

Eye doctor discussing dry eye and meibomian gland dysfunction treatment options with a patient.