NETRA – For Your Eyes!
The Near-Eye Tool for Refractive Assessment or NETRA is a little device that can be clipped on to a phone with the requisite software installed on it. The device uses:
- Array of lens made up of plastic.
- Phone display to run tests.
- Can be run with high resolution cell phone display.
It runs the tests on a phone display unit and gives a prescription, all this happening in less than 2 minutes. The mass production of the device would price it at $2 per piece.
It is useful in diagnosis of:
- Myopia,
- Hypermetropia,
- Astigmatism.
It has been developed at the Massachusetts Institute of Technology media lab and was led by Ramesh Raskar at the Camera Culture Lab.
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