Home › Words › K › keratopigmentationkeratopigmentationkeratopigmentation means the process of tattooing the cornea to permanently change the colour of the human iris (the coloured portion of the eye), usually done for cosmetic purposes.EtymologyFrom kerato- (“cornea”) + pigmentationnounThe process of tattooing the cornea to permanently change the colour of the human iris (the coloured portion of the eye), usually done for cosmetic purposes.Definitions & examples from Wiktionary (CC BY-SA 3.0).