| collar-stud chalazion | A chalazion that extends through the tarsal plate anteriorly (c. Externum) and toward the conjunctiva. (05 Mar 2000) |
|---|
| acute chalazion | An acute purulent infection of a meibomian (tarsal) gland. Synonym: acute chalazion, hordeolum meibomianum, meibomian sty. (05 Mar 2000) |
|---|---|
| chalazion | A cyst within the eyelid due to a plugging of the Meibomian gland (in the eyelid). Treatment includes warm wet compresses. Surgical drainage may be required for those which do not respond to conservative measures. (27 Sep 1997) |