Bacteria can be the underlying cause of both blepharitis and styes. But styes are the result of an infection and cause a painful lump, while blepharitis is eyelid inflammation. If your eye is ...
A stye is an infection on the eyelid, resulting in a painful, pimple-like bump. They are typically external, but people can have a stye inside the eyelid, known as an internal stye. The article ...