Corneal tattooing - Wikipedia

Corneal tattooing (also referred to as a eye tattoo) is the practice of tattooing the cornea of the human eye.Reasons for this practice include improvement of cosmetic appearance and the improvement of sight. Many different methods and procedures exist today, and there are varying opinions concerning the safety or success of this practice.…

Scleral tattooing - Wikipedia

Scleral tattooing is the practice of tattooing the sclera, or white part of the human eye. The dye is not injected into the tissue, but between two layers of the eye, where it spreads out over a large area. The process is not common. [citation needed] Some procedures have caused loss of vision, severe permanent pain, and loss of the eye.…