Condition Library
Blepharitis
Blepharitis is one of those conditions people live with for years without ever being told what it is. Crusty lids in the morning, a gritty burning feeling, lids that look a bit red at the margin, and eyes that never feel quite right.
It matters more than its symptoms suggest, because the same inflammation that affects the lid margin also blocks the meibomian glands, and blocked meibomian glands are the leading cause of dry eye. Treating blepharitis is frequently how you actually treat someone's dry eye.
Symptoms
- Crusting or flaking along the lash line, worst on waking
- Red, swollen or thickened lid margins
- Burning, itching or a gritty sensation
- Watery eyes
- Lashes that fall out, grow at odd angles, or become sparse
- Recurrent styes or chalazia
- Contact lens discomfort
Causes and risk factors
- Bacterial overgrowth along the lid margin
- Meibomian gland dysfunction
- Seborrhoeic dermatitis and dandruff
- Rosacea, which is strongly associated
- Demodex mites, which are more common with age
- Allergy and environmental irritants
Treatment
- Warm compresses applied at sufficient heat for long enough to liquefy gland contents, which is where most home attempts fail
- Lid margin cleaning with a dedicated cleanser rather than shampoo
- In-office meibomian gland expression
- Topical or oral antibiotics in more significant cases
- Treatment aimed at Demodex where present
- Managing associated rosacea or seborrhoeic dermatitis
- Omega-3 supplementation
- Consistency, which is the single biggest predictor of success
Keeping it under control
- Do the routine daily rather than intensively for two weeks. Consistency over years beats intensity over a fortnight.
- Attach the routine to something you already do every day, so it does not depend on remembering.
- Use a dedicated lid cleanser rather than baby shampoo, which was standard advice for years and is now considered less than ideal.
- Treat associated rosacea or seborrhoeic dermatitis, since managing the skin condition frequently improves the eyes more than anything done directly to the lids.
- Replace eye cosmetics regularly and remove them fully, since old product on the lid margin sustains the problem.
- Come back if styes keep recurring, which usually means the underlying gland dysfunction is not adequately controlled.
Common misunderstandings about blepharitis
- That it is an infection you can clear with a course of treatment. It is a chronic inflammatory condition of your own lid margins. It is managed rather than cured, and stopping the routine typically brings it back.
- That it is contagious. It is not. You cannot pass it to family members or catch it from someone else.
- That it is a hygiene failure. It is not caused by being unclean. People with excellent hygiene get blepharitis, and the underlying drivers are things like rosacea, seborrhoeic dermatitis, Demodex and meibomian gland dysfunction.
- That baby shampoo is the right cleanser. It was standard advice for years and is now considered less than ideal. Dedicated lid cleansers are formulated for the job and are gentler on the ocular surface.
What we look for on the lid margin
Blepharitis is diagnosed by looking at the lid margins under magnification, and different findings point to different underlying causes and different treatment.
Crusting and scaling at the base of the lashes suggests anterior blepharitis, usually bacterial or seborrhoeic. Thickened, irregular lid margins with capped or blocked meibomian gland openings suggests posterior blepharitis and meibomian gland dysfunction. Cylindrical collarettes around the lash base are characteristic of Demodex, which is common with age and needs specific treatment that generic lid hygiene does not provide.
We also express the meibomian glands to see what comes out. Clear oil is normal. Thick, cloudy or toothpaste-like secretion, or nothing at all, tells us a great deal about how advanced the gland dysfunction is and how aggressive treatment needs to be.
Why consistency matters more than intensity
Blepharitis management fails for one reason more than any other: people do it intensively for two weeks, feel better, stop, and are back where they started within a month. It is a chronic condition and the routine is maintenance rather than a course of treatment.
A realistic daily routine, done for years, beats an aggressive routine done for a fortnight. Warm compress, lid cleaning with a proper cleanser rather than shampoo, done as part of an existing daily habit so it does not depend on remembering.
It is also worth treating associated conditions. Rosacea and seborrhoeic dermatitis both drive lid inflammation, and managing the skin condition frequently improves the eyes more than anything done directly to the lids.
When to see an optometrist
If your lids are persistently crusty, red or irritated, if you get recurrent styes, or if dry eye treatment has not worked. Untreated blepharitis can cause permanent meibomian gland loss. Bring a list of any skin conditions you have, particularly rosacea or seborrhoeic dermatitis, because they are closely linked and treating them often improves the eyes more than anything applied to the lids directly. If you have already tried lid hygiene without success, tell us exactly what you used and for how long, since the most common reason it fails is that the compress was not hot enough or held long enough to liquefy the gland contents.
Related conditions
- Dry Eye SyndromeBurning, gritty or watery eyes. Why over-the-counter drops fail most people, and what actually treats meibomian gland dysfunction.
- Computer Vision SyndromeTired, dry, aching eyes at a screen. It is caused by sustained focus and reduced blinking, not by blue light. What actually helps.
This page is general educational information, not medical advice or a diagnosis. It is not a substitute for an examination. If you are experiencing sudden vision loss, eye pain or an eye injury, contact us immediately or go to an emergency room.
Blepharitis questions
Can blepharitis be cured?
It is usually chronic and managed rather than cured. With consistent lid hygiene most people control it well and become largely symptom-free, but stopping the routine typically brings it back.
Is it contagious?
No. It is an inflammatory condition of your own lid margins, not an infection you pass on.
Why is my dry eye treatment not working?
Untreated blepharitis is one of the most common reasons. If the lid margins are inflamed and the meibomian glands blocked, artificial tears cannot fix the underlying problem.
Is baby shampoo good for cleaning my lids?
It was standard advice for years and is now considered less than ideal. Dedicated lid cleansers are formulated for the job and are gentler on the ocular surface. We will recommend a specific product.
Book an appointment with a doctor who has time for you
We schedule 2 patients an hour, so your exam is unhurried and your questions get answered. Most patients are seen within a few days.