Stye: Difference between revisions

An external '''stye''' or '''styes''' {{IPAc-en|ˈ|s|t|aɪ}}, also '''hordeolum''' {{IPAc-en|h|ɔr|ˈ|d|iː|ə|l|ə|m}}, is an infection of the [[sebaceous gland|sebaceous]] [[gland of Zeis|glands of Zeis]] at the base of the [[eyelash]]es, or an infection of the [[apocrine]] sweat [[glands of Moll]].<ref>[http://www.goodhope.org.uk/Departments/eyedept/lidlumps.htm Eyelid lumps], on, inside or under the eyelid. Retrieved March 19, 2007</ref> External styes form on the outside of the lids and can be seen as small red bumps. Internal styes are infections of the [[meibomian gland|meibomian sebaceous glands]] lining the inside of the eyelids. They also cause a red bump underneath the lid with only generalized redness and swelling visible on the outside. Styes are similar to [[chalazion|chalazia]], but tend to be of smaller size and are more painful and usually produce no lasting damage. They contain water and pus and the bacteria will spread if the stye is forcefully ruptured. Styes are characterized by an acute onset and usually short in duration (7–10 days without treatment) compared to chalazia that are chronic and usually do not resolve without intervention. Styes are usually caused by the [[staphylococcus aureus|''Staphylococcus aureus'']] bacterium.<ref>http://ghc.mediresource.com/disease_detail.asp?disease_id=122</ref>