EyeNetra has raised $2 million for a smartphone device that acts as a portable eye exam to improve access to eye care and cut vision impairment in developing countries.
This is how the device works. A $2 clip-on eyepiece is placed on top of a cell phone. The user looks through the eye piece and aligns the displayed patterns by clicking buttons. The number of clicks required to bring the patterns into alignment indicates the refractive error, according to the website. Using a cloud-based platform, called Test2Connect, patients can connect to providers and vendors such as eyeglass stores
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