STYES/ CHALAZIA/HORDEOLUM:
Chalazia, or more commonly known as styes, usually begin due to plugging of oil glands along the eyelids resulting in trapping of sebaceous material.
Chalazia can be caused by an environmental trigger that blocks the oil glands or by an natural imbalance of oil (ie blepharitis; see blepharitis section for further details).
Chalazia are initially treated with conservative measures (warm compresses, topical/oral antibiotics). If conservative measures fail to fully treat the chalazia, then it can be removed with a simple procedure called an incision and drainage and/or a steroid injection.