User blog comment:WonderfulUnicorn/New admiral prediction (home-made character)/@comment-3425840-20130208090728/@comment-3425840-20130208153811

Umm not really, although it sounds similar but Kenpachi uses his eye for sealing his powers. If you observe having an eye patch is not his unique trait, check Full Metal Alchemist, King Bradley has one for a similar purpose.

Ruben on the other hand has it just for deceptive reasons, his toying personality is for that, also he claims it helps him to aim with his pistol!