Description
Cavern Sickness is a form of blindness that affects dwarves. It comes from being underground for days on end and causes the victim to see things when they do not exist. The person becomes insane from the disease causing them to lash out at formation members and themselves with rage. It is not contagious, and is only fatal if the victim kills themselves in their reduced mental state.
This is an exotic disease and as such, is beyond the capabilities of the average cure disease spell.