Understanding Dry Eye & MGD

Why drops are sometimes not enough for Dry Eye relief.

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Source of Most Dry Eye Symptoms

Melbomian Glands image illustration

Your Meibomian glands produce the oily part of the tear film needed to protect the surface of your eye by preventing the evaporation of the watery part of your tears. When this function is not working well, your eyes may feel dry.

This is called Meibomian Gland Dysfunction, or MGD. MGD is a leading cause of Dry Eye, and can be the source of most dry eye symptoms, such as burning, stinging, and itching.

In One Study, 86% of all Dry Eye Patients Had MGD1

MGD is a chronic, progressive condition and, if left untreated, may worsen over time, leaving eyes feeling more irritated, inflamed, and dry.2 Despite how it sounds, the cause of Dry Eye is rarely due to a lack of the watery part of your tears, but rather an insufficient lipid layer that is needed to prevent the watery part from evaporating too quickly between blinks.

Who's Affected?

Studies have shown that MGD was prevalent in (the following high risk groups):

  • 60% of contact lens
 wearers3
  • 57% of diabetics5
  • 52% of cataract patients7

  • 86.8% of perimenopausal women4

  • 80% of glaucoma patients6

Plus, in a separate study, 72.5% of patients presenting for refractive surgery evaluation had meibomian gland atrophy (indicative of MGD).8

Signs & Symptoms

Can You Answer Yes to These Dry Eye Symptom Questions?

If ‘Yes , you may want to ask your doctor about Dry Eye and MGD.

My eyes are so irritated.

Do your eyes feel dry, gritty, and scratchy?

I often find myself rubbing my eyes.

Do you experience burning and watery eyes?

Eye drops haven't helped.

Do you often use eye drops and other means for short term dry eye relief?

My eyes are becoming a distraction.

Do your dry eye symptoms get in the way of your daily activities or work?

Sometimes I can't keep my eyes open.

Do your eyes often feel tired?

I frequently have to remove my contacts.

Are you able to wear contact lenses?

Many Conditions Contribute to MGD

MGD can be caused by activities or conditions that are common in everyday life12:

  • Allergies
  • Computer/device use
  • Environment
  • Eye surgery
  • Glaucoma/chronic eye diseases
  • Poor blinking

  • Climate
  • Contact lens wear
  • Eye infections/styes9
  • Gland-clogging makeup10
  • Medications
  • Reading/TV watching

Consultation

Why Screening is Important

Doctor speaking to male patient

Maintaining healthy function and structure of your Meibomian glands before you have dry eye symptoms is key, as MGD is a chronic, progressive, and obstructive condition.11-13 In fact, 20% of MGD patients may not have any dry eye symptoms.14 Whether you have symptoms or not, it's important that you get screened for Dry Eye and MGD. If you're diagnosed with MGD, there's something you can do about it. Early detection and treatment can minimize the long-term negative impact of MGD.

Observing MGD severity with Meibomian Gland Imaging

If you've been evaluated for Dry Eye before, but your Meibomian glands were not discussed, you may need to be screened again. It's also important to remember that, while eye drops such as artificial tears may soothe some symptoms of Dry Eye, they provide temporary palliative relief and do not address or remove gland obstruction. Even Dry Eye prescription drops will not address MGD.

As part of the Dry Eye evaluation for MGD, your eye doctor will likely take an image of your Meibomian glands, and review the images with you to discuss the level of visible glands you have, if any.

Normal gland image

A Meibomian gland structure ranges anywhere from normal to significant gland loss, depending on whether or not the disease is present and the level of its severity. Your doctor may conduct additional tests, since imaging alone cannot diagnose MGD.

Shortened gland image

Meibomian glands secret lipids - the oily part of tears - which are a key component to the tear film that helps maintain a healthy ocular surface. When meibomian glands function correctly, these lipids reduce eye surface water evaporation.

Gland loss image

When meibomian glands become blocked, the lipids cannot be released. The absence of lipids causes watery tears to dry up quickly, resulting in dry eye symptoms which can cause discomfort and sometimes blurry vision.


Left untreated, meibomian gland dysfunction progresses. Over time, the glands become completely obstructed, which then leads to meibomian gland atrophy, resulting in permanent changes in the tear film.

Note: Images for illustrative purposes only. Actual results may vary.

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Find a Doctor

Use our easy search tool to find an eye doctor in your local area who can diagnose and treat you.

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MGD Treatment

830,000 TearScience LipiFlow treatments worldwide
 and growing.15

References:

1. Lemp MA, Crews LA, Bron AJ, Foulks GN, Sullivan BD. Distribution of aqueous-deficient and evaporative dry eye in a clinic-based patient cohort: a retrospective study. Cornea. 2012 May;31(5):472-478.
2. Nichols KK, Foulks GN, Bron AJ, et al. The international workshop on meibomian gland dysfunction: executive summary. Invest Ophthalmol Vis Sci. 2011 Mar;52(4):1922-1929.
3. Machalinska A, Zakrzewska A, Adamek B, et al. Comparison of morphological and functional meibomian gland characteristics between daily contact lens wearers and nonwearers. Cornea. 2015 Sep;34(9):1098-1104.
4. Jin X, Lin Z, Liu Y, Lin L, Zhu B. Hormone replacement therapy benefits meibomian gland dysfunction in perimenopausal women. Medicine (Baltimore). 2016 Aug;95(31):e4268. doi: 10.1097/MD.0000000000004268. PMID: 27495030; PMCID: PMC4979784.
5. Shamsheer RP, Arunachalam C. A Clinical Study of Meibomian Gland Dysfunction in Patients with Diabetes. Middle East Afr J Ophthalmol. 2015 Oct-Dec;22(4):462-6. doi: 10.4103/0974-9233.167827. PMID: 26692718; PMCID: PMC4660533.
6. Uzunosmanoglu E, Mocan MC, Kocabeyoglu S, Karakaya J, Irkec M. Meibomian gland dysfunction in patients receiving long-term glaucoma medications. Cornea. 2016 Aug;35(8):1112-1116.
7. Cochener B, Cassan A, Omiel L. Prevalence of Meibomian Gland Dysfunction at the time of cataract surgery. J Cataract Refract Surg. 2018 Feb;44(2):144-148.
8. Brooks CC, Gupta PK. Meibomian gland morphology among patients presenting for refractive surgery evaluation. Clin Ophthalmol. 2021;15:315–21.
9. Duke University website. Immune response likely culprit in eyelid gland condition that causes dry eye. Found at: https://dukeeyecenter.duke.edu/news-events/immune-response-likely-culprit-eyelid-gland-condition-causes-dry-eye, July 2018. Accessed December 10, 2019.
10. American Optometric Association, Paraoptometric Resource Center, CPC Submission, T Petrosyan. Cosmetics and the eye: how your beauty products could be harming your eyes. Found at: https://www.wpa-eyes.org/wp-content/uploads/2018/11/Cosmetics-and-the-Eye.pdf, 2018. Accessed December 10, 2019.
11. Nichols KK, Hanlon SD, Nichols JJ. A murine model for characterizing glandular changes in obstructive meibomian gland dysfunction. ARVO. 2014. Abstract #13-A0002.
12. Schaumberg DA, Nichols JJ, Papas EB, Tong L, Uchino M, Nichols KK. The international workshop on meibomian gland dysfunction: report of the subcommittee on the epidemiology of, and associated risk factors for, MGD. Invest Ophthalmol Vis Sci. 2011 Mar;52(4):1994-2005.
13. Tomlinson A, et al. The International Workshop on Meibomian Gland Dysfunction: Report of the Diagnosis Subcommittee. Invest Ophthalmol Vis Sci. 2011;52(4):2006-49.
14. Viso E, et al. Prevalence of asymptomatic and symptomatic Meibomian Gland Dysfunction in the general population of Spain. Invest Ophthalmol Vis Sci. 2012; 53(6): 2601–2606. doi: 10.1167/ iovs.11-9228. 1992;19(12):1950-1954.
15. Internal Data on File, 2019.

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