Topic: Eyewear
A WSJ blog noted recently that "when NASA’s Shuttle Discovery blasts off into space this week, two of its six astronauts will be sporting...Superfocus glasses [formerly TruFocals]...Traditional bifocals and other glasses have long been used in space. But Dr. C. Robert Gibson, a vision consultant to NASA, suggested using the Superfocus glasses because they can be adjusted and give wearers a wide field of view. That’s especially important for astronauts who often have to look above them at monitors."
