New Contact Lenses Give Wearers Telescopic Vision. Popular Science (7/3) reports, “Researchers have created a prototype contact lens-and-glasses system that lets you zoom in on something to 2.8X magnification.” Right now, Popular Science, reports, “the lens’ engineers, a team with members from California and Switzerland, are designing it for people with age-related macular degeneration, which is the number-one cause of vision loss in Americans older than 60.” CNET News (7/3, Kooser) reports, “The contact lens can be switched between normal and telescopic vision.” The engineers “from the University of California San Diego, Ecole Polytechnique Federale de Lausanne in Switzerland, and the Pacific Science & Engineering Group published their work under the title Switchable telescopic contact lens in the Optics Express journal.” BBC News (7/3, Ward) reports, “The contact lens created by the researchers has a central region that lets light through for normal vision.” The telescopic part “sits in a ring around this central region.” Small “aluminium mirrors scored with a specific pattern act as a magnifier as they bounce the light around four times within the ring before directing it towards the retina.” UK’s New Scientist (7/3, Marks) reports, “Results so far are promising, the team says. ‘Although the magnified images were clearly visible in our tests, acuity fell short of the design specification,’ the researchers” said. “In addition to improving the image, the team also needs to move from the current experimental hard lens – made from hard, clear plastic – to a rigid but gas-permeable material that lets fresh air get to the eyeball, just as in modern soft contact lenses.”
Posted on: Wed, 03 Jul 2013 11:43:43 +0000
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