User blog comment:Zachattack31/Theory - Could Doflamingo be Blind?/@comment-80.248.202.199-20150625182702

I think doflamingo lost his left eye when he was a child. In chapter 763 (flashback, nighmare) they shoot an arrow at him, and then he wakes up from his nightmare. He then opens his right eye, while the left eye is shrouded in flames. Afterwards, he touches his left side of his face in pain.