This patient-education article is written by the cornea service at Suraj Eye Institute, Nagpur.

What is MGD and Blepharitis?

Blepharitis is chronic inflammation of the eyelid margins. Meibomian gland dysfunction (MGD) is a specific, very common form in which the meibomian glands — the rows of tiny oil glands inside the eyelids that secrete the lipid layer of the tear film — become blocked, inflamed or atrophied. MGD is the leading cause of evaporative dry eye.

Meibomian Glands — Anatomy and Meibography

Meibomian Glands — Anatomy and Meibography

LID CROSS-SECTION

Skin

Tarsal plate

Meibomian glands

Gland openings (lid margin)

MEIBOGRAPHY (infrared image)

Normal

MGD (gland drop-out)

Meibography images the glands non-invasively using infrared light. In MGD, glands shorten, drop out or disappear (right).

Figure 1. The meibomian glands are rows of vertical oil glands inside each eyelid (left). They open at the lid margin behind the eyelashes and secrete the lipid layer of the tear film at every blink. Infrared meibography (right) is a non-invasive image of the glands. In healthy lids the glands look like neat parallel lines; in MGD they shorten, distort or disappear (gland drop-out).

Symptoms

Patients describe a chronic gritty, burning sensation, red lid margins, crusting of the lashes on waking, and watery, fluctuating vision. Recurrent styes (hordeola) and chalazia indicate poorly controlled MGD. Symptoms typically worsen with screen use and in dry environments.

How MGD is Diagnosed

Diagnosis is clinical. We examine the lid margin at the slit-lamp for thickened, telangiectatic edges, capped or plugged gland orifices, and the quality of expressed meibum. Meibography quantifies how much of the gland tissue remains.

Treatment

MGD is chronic and the aim is long-term control. Most patients respond well to a structured combination of measures:

  • Warm compresses for 5–10 minutes daily (a heated eye mask is more effective than a face cloth)
  • Lid hygiene — gentle lid margin cleaning with a dedicated lid wipe or diluted baby shampoo
  • Omega-3 supplements at adequate dose, improving meibum quality over weeks to months
  • Topical azithromycin or low-dose oral doxycycline / azithromycin courses to reduce inflammation
  • Intense pulsed light (IPL) therapy for refractory MGD, particularly when ocular rosacea is present
  • In-clinic meibomian gland expression after warming for severely capped glands
Treat MGD before refractive or cataract surgery. Untreated MGD destabilises the tear film, makes biometry less accurate and worsens post-operative dry eye. We routinely screen and treat MGD for several weeks before any planned refractive or premium-IOL cataract surgery.
✔ MGD & Blepharitis Care at Suraj Eye Institute

We offer structured assessment of the lid margin, infrared meibography to image gland drop-out, and a stepped treatment approach including warm-compress devices, microblepharo-exfoliation, topical azithromycin, oral doxycycline and intense pulsed light (IPL) therapy for refractory MGD.

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Frequently Asked Questions

Why do I get recurrent styes?
Recurrent styes are almost always a sign of underlying meibomian gland dysfunction. Each stye is a blocked, inflamed gland. Long-term lid hygiene and treatment of the MGD itself — not just antibiotic ointment for each stye — usually breaks the cycle.

Does diet really help dry eye and MGD?
Yes — omega-3 fatty acids (from oily fish or supplements) and adequate hydration improve meibum quality. The effect is gradual, usually noticeable over two to three months. Reducing fried and high-glycaemic food also helps when ocular rosacea is part of the picture.

Are warm compresses really useful, or is this old advice?
Warm compresses remain the cornerstone of MGD treatment. The meibum is solid at room temperature and needs to be warmed to ~40 °C to liquify. A dedicated heated eye mask is more effective than a face cloth, which cools too quickly to be useful.

What is intense pulsed light (IPL) therapy?
IPL is a series of in-clinic treatments using flashes of broad-spectrum light along the lower eyelid skin. It reduces inflammatory mediators on the lid skin, treats abnormal blood vessels of ocular rosacea and improves meibomian gland function. Typically a course of four sessions over two months is recommended.

Can blepharitis damage my vision?
Long-standing untreated blepharitis can cause recurrent corneal erosions, marginal corneal ulcers and a generally unstable ocular surface that blurs vision throughout the day. With consistent lid hygiene and MGD treatment the surface stabilises and symptoms improve.

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