Teemo Blinds Blind man explained

So you've heard the jokes and complaints about "Teemo blind Lee Sin logic". Well it's time that it was put to a logical end. On the website, Teemo's Q, Blinding Dart, fires a dart with powerful venom at a target obscuring its vision. Well in reality a venom like that would probably not only blind, but dull all the senses including hearing. (Don't you dare say "but this isn't reality this is League" because you bring reality into league when you question a fantasy creature called a yordle blinding a blind man.) Lee Sin relies heavily on his hearing to guide him. If it were impaired he would be quite useless. Not only that but he would be able to move. Why? Because the ear is responsible for hearing as well as balance. If you've ever been hit by a really loud sound that left your ears ringing you probably felt a little disoriented. That's because the heavy vibration in your ear jammed your equilibrium (balance). So there you have it. The reason why a blinding dart blinds a blind man.