In 1851 they were still to some extent a distinct people, but exist now only as one of the component divisions of the (Southern) Cheyenne tribe, in no respect different from the others. Under the name Staitan (a contraction of SÅ­tai-hitÃ¤n, pl. SÅ­tai-hitÃ¤nio, âSÅ­tai menâ) they are mentioned by Lewis and Clark in 1804 as a small and savage tribe roving west of the Black Hills.
Styes are usually caused by infections of the oil glands in the eyelid. Very frequently, they are infected by bacteria, most commonly Staphylococcus bacteria. Seborrhea (excessive oily discharge from the glands) may increase the likelihood of developing one of these infections.
Another condition that causes inflammation of the eyelid is a chalazion. A chalazion occurs when there's a blockage in one of the small oil glands at the margin of the eyelid, just behind the eyelashes. Unlike a sty, a chalazion usually isn't painful and tends to be most prominent on the inner side of the eyelid.