Bucky
Yes. Except for the colorblindness, I've never met anyone that was colorblind before they were turned, or after... so it may not help that, but it could.
I could give him some of my blood now, it would not wake him for long, and it wont at all if there is something... If he is with you out of sheer will alone, he will not wake, if you get my meaning. But if he wakes, you can talk it over.