Comment Astronauts lose 20/10 eyesight! (Score 1) 109
Astronauts tend to be proud of their eyesight... like Chuck Yeager:
http://www.achievement.org/aut...
From the early days of test pilots and the original Right Stuff astronauts they've typically had much better than 20/20 eyesight.
So it's probably easy to detect this sort of thing, and they might be a little ticked off to loose it
Of course a lot of people would go to space even if they went blind... most of us risked that in Junior High School anyway!