Board Thread:Boruto Discussions/@comment-25319479-20160502145551/@comment-5936871-20160504204242

Pretty sure Boruto's right eye is Mitsuki's Sage Transformation eye due to the lack of veins. The author probably intentionally wanted people to get it confused with Byakugan so that people would talk about it and stay hooked. But due to the lack of veins, it's likely Mitsuki's eye. Which would make more sense because he's Boruto's teammate and friend.