where do styes in the eye come from
Stye The cause of a stye is usually a bacterial infection by Staphylococcus aureus.[3][6] The internal ones are due to infection of the meibomian gland while the external ones are due to an infection of the gland of Zeis.[5] A chalazion on the other hand is a blocked oil gland without infection.[4] They are typically in the middle of the eyelid and non painful.[5]