eye disorders
Chalazion and Hordeolum (Stye)
Hordeolum
A hordeolum (stye) is an acute, localized swelling of the eyelid that may be external or internal and usually is a pyogenic (typically staphylococcal) infection or abscess. Most hordeola are external and result from obstruction and infection of an eyelash follicle and adjacent glands of Zeis or Moll glands. Follicle obstruction may be associated with Blepharitis . An internal hordeolum, which is very rare, results from infection of a meibomian gland. Sometimes 