Eyeball tattoos are created by an tattoo artist who injects pigment directly into the eyeball. Ophthalmologists say eyeball tattoos for the purpose of body modification are dangerous and could lead to infection, perforation, hemorrhages or even blindness.http://www.nypost.com/seven/07312007/entertainment/health/dont_turn_blind_eye_to_eye_tattoo_risks_health_dr__rock_positano.htm The state of Oklahoma passed a senate bill on Thursday, February 19, 2009, that would make the practice illegal.http://www.newsok.com/oklahoma-senate-panel-wants-to-make-tattooing-the-eyeball-illegal/article/3347258

In some cases, the cornea part of the eye is tattooed. Corneal tattoos are sometimes done in order to cover a corneal scar that is a result of a burn or other eye trauma.http://www.nypost.com/seven/07312007/entertainment/health/dont_turn_blind_eye_to_eye_tattoo_risks_health_dr__rock_positano.htm

In January of 2010, the MSNBC program Lockup featured a segment about two prisoners, cell-mates, who got eyeball tattoos. One of the prisoners had the whites of his eyes colored red, another did his blue. One of the prisoners, the one with the red-eyes, said that it was "painful" (like "hot icepicks") but didn't reveal the process he used to do the tattoo. He said that he only wanted to "do a little dot" but the ink spread all throughout the white of his eye. http://www.youtube.com/watch?v=_zn3N-TEul8

Getting an eyeball tattoo is an extreme form of body modification. In 2007, BME magazine featured a photo gallery showing a person getting 'eyeball tattoo'. The volunteer for the 'experiment' was a Canadian man who went by the name "Pauly Unstoppable". The pictures show the a hypodermic needle, filled with blue ink, being injected into the man's eyeball. After the ink was injected (reportedly over 40 injections were done) the ink then spread throughout the eyeball. The pictures appeared to show that there were some broken blood vessels and possibly bruising.http://believe-or-not.blogspot.com/2009/08/worlds-first-eyeball-tattoo.html