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NASA Testing Liquid-Lens Adjustable-Strength Glasses For Use In Space

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Eyewear with adjustable strength lenses isn’t new — PopSci first heaped “Best of What’s New” honors upon one concept a full ten years ago — but NASA is taking it to new heights, evaluating Zoom Focus Eyewear’s strength-shifting TruFocals for use on the International Space Station and other missions.

NASA’s astronauts used to be largely a corps of Air Force pilots with the near-perfect vision that goes along with being a young daredevil flyboy. But these days NASA has relaxed its vision restrictions as space missions have turned away from unprecedented flights and more toward routine scientific research missions requiring non-pilot specialists from various scientific fields.

Full story: NASA Testing Liquid-Lens Adjustable-Strength Glasses For Use In Space | Popular Science