Board Thread:General Discussion/@comment-90.177.179.49-20140501133340/@comment-90.177.179.49-20140512220131

I think that you can go blind from trauma but that's not the case with her.

If I remember correctly Charles told Lelouch that he made Nunally blind. And when she finally opens her eyes Lelouch thinks that it happened because Charles is dead and therefore the geass is weaker. That clearly implies that Charles (or rather his geass) is the one that made Nunally blind.

But why did he made her blind when all he could do - and what he indeed did - was to change her memories on the assassination...that is the question.