Best of What's New 2011

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Massachusetts Institute of Technology Catra

Finding cataracts
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Massachusetts Institute of Technology Catra Jeff Harris

Nearly 10 million people worldwide go blind from cataracts, a clouding of the eye’s lens. CATRA, a smartphone attachment, helps those without access to an ophthalmologist screen for the disease. A patient stares through the eyepiece at an image on the phone’s screen, and the eyepiece sends a beam of light into his eye. When the image appears to dim, indicating that the beam has encountered a cataract, the patient presses a button. The app maps the location of each cataract and presents a diagnosis. $2

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