Indian-led MIT team develops cheap device to detect cataracts

Dubbed  as 'Catra', the cost-effective device works as a radar for the human eye, a simple and cheap device that can be clipped onto an ordinary smart phone or an iPod and can diagnose the cataracts within a few minutes.

The standard test to detect the cloudy patches in the eye's lens requires a Rs.2 lacs  piece of equipment called a slit lamp, and a trained physician to interpret its results – two things that are often not available in rural  INDIA.