Quote Originally Posted by Shock View Post
But didn't Kakashi state that they were from the byakugan?

Also I think its gotta be some sort of medical jutsu too, other wise where would the eyes go? that or he eats the or something....
No, Kakashi didn't state that they were. He said its "believed" that the sharingan descended from the byakugan. In other words, its an assumption in the Naruto world. I suppose at one point in Narutoverse history, the sharingan and the byakugan had similar characteristics, but then they evolved into the current representations of each.

And there's most definitely a medical jutsu behind the transplant of eyes.