Stanford University has been tinkering with iPhones, Legos, and 3D printers. Their efforts have resulted in a new device that has the potential to prevent blindness in millions of people. Called the EyeGo, the inexpensive device is an adapter that attaches to an iPhone and in some ways performs the work of much more sophisticated medical equipment," reports CNET News. "'The EyeGo is helping someone who is taking the picture to do what we call a portable slit lamp -- getting a picture of the front of the eye, the cornea, seeing the lens of the eye,' explains Robert Chang, assistant professor of ophthalmology at Stanford University. 'It also helps you take pictures of the fundus which is the retina or the inside lining of the back of the eye.' The CNET News team visited the Byers Eye Institute at Stanford to see the EyeGo in action." See the video here.