Eye Health Center
Styes and Chalazia - Topic Overview
What are styes and chalazia?
Styes and chalazia are lumps in or along the edge of an eyelid. They may be painful or annoying, but they are rarely serious. Most will go away on their own without treatment.
- A stye
is
an infection that causes a tender red lump on the eyelid. Most styes occur
along the edge of the eyelid. When a stye occurs inside the eyelid,
it is called an internal hordeolum (say "hor-dee-OH-lum"). - A chalazion
(say "kuh-LAY-zee-on") is a lump in the eyelid. Chalazia (plural) may look like
styes, but they are usually larger and may not be painful.
Styes and chalazia may be related to blepharitis, a common problem that causes inflammation of the eyelids.
What causes a stye or chalazion?
Styes are caused by a bacterial infection. Usually the bacteria grow in the root (follicle) of an eyelash. An internal hordeolum is caused by infection in one of the tiny oil glands inside the eyelid.
A chalazion develops when an oil gland in the eyelid becomes blocked. If an internal hordeolum doesn't drain and heal, it can turn into a chalazion.
What are the symptoms?
A stye usually starts as a red bump that looks like a pimple along the edge of the eyelid.
- As the stye grows, the eyelid becomes swollen and painful, and the eye may water.
- Most styes swell for about 3 days before they break open and drain.
- Styes usually heal in about a week.
A chalazion forms a firm lump or cyst under the skin of the eyelid.
- Chalazia grow more slowly than styes. If a chalazion gets large enough, it may interfere with vision.
- The inflammation and swelling may spread to the area surrounding the eye.
- Chalazia often go away in a few months without treatment.
How is a stye or chalazion diagnosed?
Doctors diagnose a stye or chalazion by closely examining the eyelid. It may be hard to tell the difference between a stye and a chalazion. If there is a hard lump inside the eyelid, the doctor will probably diagnose it as a chalazion.
How are they treated?
Home treatment is all that is needed for most styes and chalazia.
- Apply warm, wet compresses 3 to 6 times a day. This usually helps styes and chalazia heal faster. It may also help open a blocked pore so that it can drain and begin to heal.
- Use an over-the-counter treatment. Try an ointment (such as Stye), solution (such as Bausch and Lomb Eye Wash), or medicated pads (such as Ocusoft Lid Scrub).
- Let it open on its own. Do not squeeze or open a stye or chalazion.
- Don't wear eye makeup or contact lenses until after the stye or chalazion heals.
WebMD Medical Reference from Healthwise
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