Smartphone attachment diagnoses cataracts

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Catra can diagnose cataracts on your smartphone.

Researchers at MIT’s Media Lab have created a smartphone attachment called Catra that can diagnose cataracts in a matter of minutes. The screening tool is currently being tested on subjects.

Catra clips on to devices such as phones and iPods, and scans the lens of the eye to create a map of the position, size, shape and density of cataracts. “I like to think of this as a radar for the human eye,” says Ramesh Raskar, director of the MIT Media Lab’s Camera Culture group…

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