Re: Theory: Anime frames of Sasuke. The Original Sharringan, and Implications.
I'm glad you said that... Kurenei's eyes could very well be a pre-evolved eye, that is on the verge of becoming a bloodline technique/ability.
Originally Posted by gibdirzuckungen
Considering that all jutsu originates from the Rinnengan... including dojutsu.
Think about it... the Rinnengan is grey, just like the Byakugan... and has ring formations... just like the Sharringan. For the Byakugan, the area around the eyes shows blood vessels almost bursting from the face, requiring exteme effort and chakra use... compared the rinnengan that is naturally used by Nagato with little effort. The sharringan turns red, most likely from the increased bloodflow into the eye, and forms rings, before the 3 black pupils form...
Basically, those 2 eye techniques seem like Kureni's eyes, but evolved through training and chakra manipulation, that takes the mimicked natural form of the rinnengan... but can't achieve the rinnengan's abilities, because they are a 1 in a million bloodline trait....