More people worldwide are opting for cosmetic surgery to improve their looks. What people may not know is that procedures to change the colour of one's eyes are the riskiest. Research conducted by an online eyewear store states eye colour surgery has a 92 per cent likelihood of complications. The surgery tops the list of riskiest cosmetic procedures. Operations include iris implants and pigment removal. There is also a procedure called keratopigmentation. This is a permanent colour change in which a special dye is inserted into the eyes using precision laser technology.

The American Academy of Ophthalmology warned against eye colour change procedures. It highlighted things that could go wrong. These include dye leakage, allergic reactions, sensitivity to light, vision loss, and ultimately blindness. It added: "Anything that we do with the eyes, we have to be very, very cautious." The researchers said it can take up to two months to recover from surgery. An ophthalmologist advised getting coloured contact lenses instead of an operation. She said this, "can give you the look you want without putting your eye health at risk".