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