Condition

Blepharitis

Blepharitis is swelling of the eyelids, usually along the edges where the eyelashes grow. It is common and not contagious, and a simple daily eyelid-care routine keeps most cases under control.

Key points

Common signs
Red, itchy or swollen eyelid edges, flaky crusts on the lashes, and burning or gritty eyes.
Who’s at risk
People with dandruff, rosacea, oily skin, allergies or dry eye. It becomes more common with age.
How it’s found
Your eye doctor looks closely at your eyelids, lashes and oil glands with a microscope.
Treatment
Daily warm compresses and eyelid cleaning. Some people also need prescription drops, ointments or pills.
A close view of an eye and its lashes, where the eyelid edges meet

Blepharitis is swelling (inflammation) of the eyelids, usually along the edges where your eyelashes grow. It makes the eyelids red, itchy and irritated, and it often leaves crusty flakes on the lashes that look a bit like dandruff.

There are two main kinds, and many people have both:

  • Front of the eyelid. This happens where the eyelashes attach. Common causes are bacteria that normally live on the skin, dandruff from the scalp and eyebrows, and tiny mites that live at the roots of the lashes.
  • Back edge of the eyelid. This is the part that touches your eye. Here, tiny oil glands in the eyelid get clogged or make oil that is too thick. Your tears need that oil to stay on your eye, so this kind often goes hand in hand with dry eye.

Blepharitis is very common. It is not contagious, and it rarely harms your sight. It does tend to last a long time and flare up now and then, but a simple daily routine keeps most cases under control.

Blepharitis usually affects both eyes. You may notice:

  • Red, swollen or itchy eyelids
  • Crusts or flakes on the eyelashes, often worse when you wake up
  • Eyelids that stick together in the morning
  • Burning, stinging or a gritty feeling, like something is in your eye
  • Watery eyes, or tears that look foamy or bubbly
  • Dry eyes
  • Being bothered by bright light
  • Blurry vision that gets better when you blink
  • Eyelid edges that look greasy
  • Eyelashes that fall out, or grow in the wrong direction

Blepharitis can also make you more likely to get styes (red, painful bumps on the eyelid) and chalazia (firm, painless lumps from a blocked oil gland).

Sources

  1. Blepharitis — National Eye Institute
  2. What Is Blepharitis? — American Academy of Ophthalmology
  3. Blepharitis — American Optometric Association

This page is for general education and is not a diagnosis. If you have a concern about your health, contact us.