Question: do you need 20/20 vision to be an astronaut?
Answer: Having good eyesight Like airline pilots, astronauts have to have 20/20 vision, though applicants won't be disqualified if they have 20/20 vision aided by eyeglasses. Aspiring astronauts who have surgery to correct their vision to 20/20 have to wait at least a year after surgical procedure before training starts.