User blog comment:Zachattack31/Theory - Could Doflamingo be Blind?/@comment-5869646-20150625153637/@comment-76.117.245.44-20150625155532

It was clear that Issho/Fujitora was blind from the start - you can see it clearly. But with Doflamingo - he could have mastered it at a certain level of skill where people just assume he is normal like they are.