In sectoral heterochromia one part of the eye is different from it’s remainder. Heterochromia, in general is the result of excessive pigment. It can be inherited or caused by disease & injury.
Hello! Hope you're feeling better by the time you get this message! I have a story set in ancient Rome and I have a character who got hit with an arrow to his thigh. It didn't hit a major artery and the medics managed to get it out in one piece. Would it still be plausible for him to use a crutch or get infections from the wound, or does this seem too outrageous?