How does one contract color blindness?

Eye'veGotYouCovered: You don't contract it,you inherit it.It's a mostly genetic disorder.Color blindness is a usually a genetic (hereditary)condition(you are born with it).Red/green and blue color blindness is usually passed down from your parents.The responsible gene is carried on the X chromosome, the reason why many more men are affected. Non-genetic causes can be rare diseases that affect the eye and brain nerves.