What is a Chalazion or Bump on the Eyelid?

What is a Chalazion or Bump on the Eyelid?

If there is a fairly large bump on your eyelid it may be a chalazion or stye. This is a benign condition that occurs when an oil gland on the eyelid becomes clogged and inflamed.   Oil Glands on the Eyelid The eyelids have several types of glands including two...