With new breakthroughs in the world of tattooing seems to be eye ink. There are two methods of injecting ink into your cornea. Well the first is the good old fashion stick and ink em. The other is a syringe into a thin layer of the eye injecting the ink into the cornea.
Needless to say there is a risk. A few. The color can fade and infection can take hold as well. Scaring can happen as well as blindness, go figure.
But do not instantly asume , when you see a person with a cornea tatoo, that hes a freak or down right creepy. Besides this kind of tattooing has been around in medical science for a long time as a way to make discolored eyes from injuries seem normal. Body modifications have been around since the dawn of man, tattoos have been in place long before our own country so before you speak think.

"The eye is the mirror to the soul,
I just want to decorate my mirror"
L.G