More people are having cosmetic surgery to improve their looks. However, procedures to change the colour of one's eyes are risky. Research conducted by an eyewear store states eye colour surgery has a 92 per cent chance of problems. The surgery is the riskiest cosmetic procedure. Operations include a procedure called keratopigmentation. This is a permanent colour change in which a special dye is inserted into the eyes with lasers.

An American eyecare group warned against eye colour change procedures. It said things can go wrong. These include dye leakage, allergic reactions, sensitivity to light, and blindness. It added: "Anything that we do with the eyes, we have to be very, very cautious." An eye specialist said getting coloured contact lenses was better than surgery. She said this, "can give you the look you want without putting your eye health at risk".