A chalazion and a hordeolum are both bumps on the eyelid. A hordeolum, also called a stye, is caused by bacterial infection, while a chalazion results from an obstructed gland. Knowing whether you ...

An external eyelid stye is a red, painful bump on the surface of the eyelid. The bump may resemble a pimple and be tender to the touch. An external stye can appear anywhere on the eyelid. However, it ...

A stye or sty, also known as a hordeolum, is a small, painful red lump that develops on the inside or outside of an eyelid. It is caused by a bacterial infection that can develop inside the root ...

Please provide your email address to receive an email when new articles are posted on . Elizabeth D. Muckley, OD, FAAO: An internal hordeolum is a bacterial infection of one of the meibomian glands in ...