Chalazion

A chalazion is a lump on the upper or lower eyelid caused by blockage and inflammation of a gland. There may be multiple chalazia at the same time. A chalazion is also referred to as a meibomian or tarsal cyst. Typically the lump grows over days to weeks and is occasionally red, warm, or painful.

Click on image to view larger image	Occasionally the infection may spread into the surrounding tissues causing cellulitis.