Shitsumei Shīru (Blindness Seal)

The user will mark the opponent on the face/neck with the seal, which will cause instant activation; the medical chakra within the seal will force the trabecular meshwork to become blocked - secondly; it'll force mass production of the aqueous humour; those under the effect of the seal will instantly feel a massive pressure behind their eyes before they begin to see 'stars', within minutes they'll enter the starter stages of glaucoma; and eventually their sight will become blurry before blindness will come into affect in both eyes - permanently blinding them.

Kaizer developed this seal by studying both Doujutsu, Medical Ninjutsu and Fuinjutsu to give him an edge over opponents. The seal instantly begins to deteriorate once the process is complete - eyesight is permanently lost once the seal has run it's course.