Leveraging the ubiquity and advanced hardware of mobile phones, EyeNetra grew out of collaborative research at the MIT Media Lab to develop and disseminate hardware apps – affordable and easy-to-use mobile phone attachments that allow anyone to measure their eyesight and get a recommendation for treatment. Like a thermometer, EyeNetra's suite of mobile diagnostics aims to empower hundreds of millions in their own homes through patient centric ecosystems to diagnosis and awareness. Eye diagnostics today are archaic. They are large, expensive, disconnected, and difficult to operate. Because of that, access to eye care is expensive and time consuming. In fact, a lot of people think it is not worth doing an eye exam, sacrificing their visual health. As a result, many people in developing nations go without eye exams and remain unaware that they have a treatable eye condition. Eye care is an area with a particularly high number of untreated: 2.4 billion people worldwide suffer from a type of preventable eye impairment. Uncorrected refractive errors (i.e. nearsightedness, farsightedness, and astigmatism), presbyopia (age related eye condition), and cataracts (cloudiness in the eye) result in lost productivity, lost independence, illiteracy and impoverishment on a massive scale. Our small, portable solution allows for anyone, anywhere to get a refractive eye exam, and access a care (glasses, consultation, and more) through the mobile network. The setup consists of three parts: a smart phone, a hardware app and a software app. Snap the EyeNETRA adapter onto a smart phone loaded with EyeNETRA software, follow the simple instructions, and quickly receive the data for the corrective error in eyeglasses right on the phone. EyeNetra's NETRA-G fits snugly in a pocket and requires minimal training to operate. Rapidly emerging mHealth solutions will provide radical solutions to perform portable eye-diagnostics. EyeNetra plans to be at the forefront of this revolution by creating a cloud-based platform that brokers new business between patients and providers + vendors (eg hospitals, doctors, eyeglass stores, pharmaceuticals, and more).