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[i]NASA is evaluating a new type of adjustable eyeglass lens called [URL=http://www.trufocals.com/]TruFocals[/URL] for use during training and on missions. For the past six months NASA has been taking TruFocals (made by Van Nuys, Calif.–based Zoom Focus Eyewear, LLC) through a detailed certification process to ensure they are not only a better option than other types of eyeglasses but that the materials used to make them will not pose a hazard to astronauts in their enclosed work environs, says C. Robert Gibson, a senior optometrist at the NASA Johnson Space Center in Houston.[/i]
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