Do color contacts ruin/harm your eyes?

Question

ive been looking into getting a pair of colored contacts, but im jsut wondering they can ruin your eyes/vision or harm your eyes/vision

Answer 1

my brother and i have friends that have had colored contacts for some time now but have not had any problems 

Answer 2

everyone tells me tht they do but my friend has them and had them sense last year and she wears them everyday and nothing is wrong with her eyes