1. Eye Tattooing (Includes Corneal Tattooing/Keratopigmentation). American Academy of Ophthalmology (EyeWiki). Published: January 25, 2025. URL: https://eyewiki.aao.org/Eye_Tattooing
2. Cosmetic Eye Color Surgery (Safety Concerns). American Academy of Ophthalmology. Accessed: January 30, 2026. URL: https://www.aao.org/eye-health/tips-prevention/cosmetic-eye-color-surgery
3. Keratopigmentation/Corneal Tattooing — PubMed Search Results. National Library of Medicine (NLM). Accessed: January 30, 2026. URL: https://pubmed.ncbi.nlm.nih.gov/?term=keratopigmentation+corneal+tattooing
4. Corneal Tattooing (Keratopigmentation) Review Articles — PubMed Search Results. National Library of Medicine (NLM). Accessed: January 30, 2026. URL: https://pubmed.ncbi.nlm.nih.gov/?term=keratopigmentation+review
5. Eye-Tattooing: Experts Warn About Risks of Colour-Changing Surgery. The Guardian. Published: May 18, 2024. URL: https://www.theguardian.com/lifeandstyle/article/2024/may/18/eye-tattooing-experts-warn-about-risks-of-colour-changing-surgery
6. Changement de couleur des yeux à visée esthétique : risques de la kératopigmentation. Le Monde. Published: June 24, 2025. URL: https://www.lemonde.fr/realites-biomedicales/article/2025/06/24/changement-de-couleur-des-yeux-a-visee-esthetique-ne-pas-meconnaitre-les-risques-de-la-keratopigmentation_6615642_6579630.html