Are collarettes the same as regular dandruff?

No. Collarettes are waxy sleeves around the lash base. They are strongly linked to Demodex blepharitis [2] .

Is Demodex blepharitis contagious?

Demodex mites are common on adult skin. The problem is overgrowth and lid inflammation, not a simple contagious infection.

Will lid wipes cure Demodex blepharitis?

Lid wipes can remove debris and help comfort. They may not fully clear collarettes or mite overgrowth.

Can Demodex blepharitis come back?

Yes. Lid disease can return, especially when dry eye, rosacea, or poor lid hygiene persists.

Condition

Demodex Blepharitis

Also known as Demodex Eyelid Mites, Mite Blepharitis, Collarette Blepharitis, Eyelash Mites, Cylindrical Dandruff

Updated May 16, 2026·For educational purposes only. Not a substitute for medical advice. See our terms.

Bottom Line

Demodex blepharitis is eyelid inflammation linked to tiny mites at the lash base. The key sign is waxy sleeves called collarettes around the eyelashes.

Demodex blepharitis is a common form of eyelid inflammation. In one U.S. clinic study, collarettes were used as the exam sign of mite-related blepharitis ¹.

Collarettes are cylinder-shaped sleeves of crust at the base of the lashes. They are the classic slit-lamp sign doctors look for in Demodex blepharitis ².

Treatment may include lid cleaning, office lid treatment, and prescription drops. Lotilaner drops have shown better collarette and mite outcomes than inactive (placebo) drops in clinical trials ³.

Symptoms and Signs

Common signs include:

Collarettes. Waxy sleeves sit around the lash base.
Itchy lids. Itching may be worse near the lashes.
Crusting. Lashes may look dirty in the morning.
Red lid edges. The eyelid margin can look inflamed.
Dry eye symptoms. Burning, watering, and blur can overlap.

Symptoms alone cannot prove Demodex. The lash-base exam matters ¹.

Diagnosis and Treatment

An eye doctor checks the lid margin with a slit lamp. The doctor looks for collarettes and may check pulled lashes for mites.

Treatment is based on the exam:

Lid hygiene. Gentle cleaning removes oil and debris.
Office lid cleaning. Some clinics remove stubborn lash debris.
Prescription mite treatment. Lotilaner drops target Demodex mites and improved collarette outcomes in trials ⁴.
Dry eye care. Tears, heat, or gland treatment may still be needed.

Daily Lid Care

Daily care can reduce repeat crusting:

Remove eye makeup before sleep.
Clean lash roots with a lid product your doctor recommends.
Replace mascara and eye makeup on schedule.
Avoid sharing eye makeup or lash tools.
Treat rosacea, dry eye, and gland blockage if present.

Do not put tea tree oil directly in the eye. It can irritate the eye surface.

Common Questions About Demodex Blepharitis

No. The mites are too small to see without magnification. You may see collarettes or crust instead.

Next Steps

1Ask your eye doctor to check for collarettes at the lash base.
2Bring all lid wipes, makeup, drops, and ointments you use.
3Clean lash roots only with products your doctor says are safe.
4Treat dry eye or rosacea if your doctor finds them.
5Seek urgent care for sudden vision loss, severe pain, injury, newborn red eye, or a contact lens red eye.

Find specialists for Demodex Blepharitis

Board-certified ophthalmologists who treat Demodex Blepharitis.

Browse Cornea and External Disease specialists

Also relevant

Comprehensive