Board Thread:Questions and Answers/@comment-108.205.136.124-20140225234503/@comment-110.159.8.131-20140302112220

Hmm, maybe the fact that it hasn't regenerated may be due to a unique factor of the Purple Scissor Blade that Isshin used to stab her; maybe it prevents Life Fibers infused in a human body from regenerating? Either that or her eye is fine (or has gained some sort of special property that requires her to cover it up). Although her reaction when Isshin took her eye (screaming and running away) is very different from when Ryuko stabbed her (when she faked being wounded before healing) indicating that she was actually injured, at least enough to ditch her mission and flee with the Scissor Blade.