every time you use ms / less you could useHopefully not.
Unless he uses some massive Kamui draining his chakra and going blind.
The kyubio chakra and look at obito he's been using ms all day longevery time you use ms / less you could use
no he doesn't get blindHe might go blind from that eye but he never use it to see so...that wouldn't be a problem!!And the powers of the sharingan don't fade away along with the eyesight so no probs![]()