9. Belladonna Leaves
Belladonna is a plant which known to botanists as a highly toxic fauna and their leaves can cause death if consumed. The name belladonna means beautiful women. Since big dilated pupil look was the preferred look at that time, women would crush the leaves put drops of the essence of the leaves in their eyes to dilate their pupils unnaturally. After a couple of dosages women would experience blurred eyesight, high temperature and dehydration and in the long run it could cause blindness and even death.