FIGURE 2. CHALAZION.  


Hordeola and chalazia are two common causes of the red, swollen eyelid encountered in the Emergency Department.  They can be readily distinguished with a careful history and physical exam.  

 - Hordeolum: painful, acutely inflamed eyelid gland.  Often colloquially called a stye.
 - Chalazion: non-painful, sterile, granulomatous, chronic inflammation of an eyelid gland.


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