Irods and Ucones

The 24-chromosome Vuduri have a number of remarkable characteristics. Their optics have been heavily modified. In addition to having a tapetum and a Maksutov-Cassegrain telescope built into their eyes, they also have an extra, internal iris built in. Rei refers these as to built-in sunglasses. The internal iris reacts very quickly and allow the Vuduri to go from total darkness to extreme brightness without any discomfort. They also have a second set of cones called Ucones. These cones have been modified to detect into the ultraviolet. Finally they have a second set of rods, call Irods which allow them see deep into the infrared. Basically, heat vision. They can often use the heat of their own body to "illuminate" an area sufficiently to make out some details.