External Hordeolum ( stye)
A stye ( hordeolum) is an infection of the glands inside the eyelid . There are two types of styes, internal hordeolum and external hordeolum. An external stye is a bacterial infection of the Glands of Zeis and/or Glands of Moll inside the eyelids. An internal stye is a bacterial infection of the meibomian glands inside the eyelids. It can cause swollen and pain of the eye lid, sometimes changes the vision. It needs to be treated with warm compress and antibiotic.