News » Vision test with mobile phone. The NETRA system.
A group of researchers at MIT (Massachusetts Institute of Technology) has developed a verification system of visual defects using an extremely ingenious and inexpensive tool, applied to a mobile phone. Their invention comprises an economic optical instrument, and an interactive software that together create a measurement tool of vision to be used in developing countries where more expensive measuring instruments of view are not available. This new technology allows for early detection and fast for the most common visual defects such as myopia, hyperopia, astigmatism and presbyopia which is a vision defect (inability to focus on nearby objects) typical of advanced age. The instrumental part of the contraption consists of a equip that is applied to a mobile phone with Android software. A clip of the cost of $ 2 (two dollars). The patient will look through this instrument, and the Android system process information. The accuracy of diagnosis is equivalent, if not better in some cases, the traditional measurement tools of view. We recommend the use of this new tool for the diagnosis of vision at home, in schools and eye care clinics in developing countries who can not invest large sums in expensive equipment, or where the assistance of an ophthalmologist is not available.
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