A chalazion can develop when a person has a stye that does not go away. Although both blepharitis and conjunctivitis can develop as a result of bacteria, they are different eye conditions.

A stye is a lump on your eyelid caused by a bacterial ... overgrowth of bacteria from clogged oil glands. This is known as blepharitis. Blepharitis can develop when you don’t keep your eyelids ...

It is possible for a stye to interfere with your sight, causing blurry vision or even going so far as to cause corneal ...