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The news hit the internet yesterday that scientists from Massachusetts Institute of Technology have developed an app for smart phones that can give a person an accurate eyeglass prescription. The app is loaded on the smart phone and used with an inexpensive, thin lens and works like an old manual focus camera where the user brings patterns into focus. The app measures each axis of the eye and even can detect astigmatism. Once all the patterns are brought into focus by the user, the app produces a prescription. The app, named Near-Eye Tool for Refractive Assessment (NETRA) will be introduced soon.
Does this replace your trip to the eye doctor? No, because your doctor is looking not only at what your prescription is for clear vision, but your eye health, medical history and any sign of eye disease such as cataract or macular degeneration. And the app can’t do that. But it may have a significant impact worldwide for people that don’t have access to high quality ophthalmic care, but do have access to cell phones. According to the internet article by Discovery News, MIT is working with various NGOs in different countries to help distribute the both the app and the screen, which will be known as PerfectSight.