A change in eye color is an aesthetic goal desired by many people and this is why the use of contact lenses to achieve it temporarily is still very common today Many unconventional surgical techniques have appeared without sufficient scientific evidence to permanently change eye color and one of these techniques is corneal pigmentation Corneal tattooing or corneal pigmentation is used superficially on a blind eye to correct an iris defect and it is performed through the following methods 1 Artificial iris implantation 2 Insertion of a silicone based implant into the eye to change the color of the iris Laser depigmentation of the iris 3 Removal of melanin pigment from the iris Implantable colored contact lenses placed inside the eye Indications for the procedure Cosmetic desire to change eye color Correction of congenital iris defects Compensation for trauma or disease related damage Mechanism of action Silicone implantation covering the natural iris Natural iris covers saturated with silicone Laser Gradual removal of superficial melanin through the ocular blood circulation Injection of approved pigments into the stroma Corneal tattoo Injection of approved pigments into fine corneal microtunnels Cosmetic corneal pigmentation under local anesthesia Treatment Intraocular pressure lowering eye drops Surgical implantation if complications occur Anti inflammatory regimens Regular IOP monitoring Risks Chronic dry eye Corneal ectasia where the cornea significantly loses its natural thickness Photophobia or light sensitivity Cataract formation Guidelines These procedures should not be used for purely cosmetic reasons The need for evaluation by a specialized ophthalmologist Awareness that corneal enlargement procedures are more customizable and less risky compared to implantation University of Al-Mustaqbal – The First and Leading Private University