internal hordeolum

Usually, home treatment is all that is necessary to treat an internal hordeolum.

If an internal hordeolum doesn't drain and heal, it can turn into a chalazion.

An internal hordeolum is caused by infection in one of the tiny oil glands inside the eyelid.

When a stye occurs inside the eyelid, it is called an internal hordeolum (say "hor-dee-OH-lum").

Also called a stye, an internal hordeolum starts as a sensitive, red, swollen area just beneath the surface of the eyelid along the eyelash line.

An internal hordeolum develops from a blocked oil gland inside the eye, which prevents the pore from draining and leads to inflammation.

An internal hordeolum usually comes to a head (clear or yellow fluid collects in the stye) in about 3 days, breaks open, drains, and then heals in about a week.