Starlessii
If you Google it you will know. It was Madara. They say that once you awaken it you can use it even without eyes since it becomes a part of spiritual energy or something.
Starlessii:Susano takes power from the eye negatively for Shisui he used it with one eye and in this case the pressure will be double on his eye and for the fourth ninja war you might mean Kakashi and he is like Shisui but I am not convinced of his ability to activate Susano because he is not from Uchiha