So you would like to use your smartphone to perform a vision test? EyeQue can help. It is a cool gadget that combines with your smartphone to let you take vision tests and track your eyesight over time. The EyeQue miniscope is pretty easy to use. Just remove the protective sticker and attach it to your phone. Look into the scope, relax your eyes, and tap the buttons on your screen to overlap the lines.
You will be able to review your progress over time to find out when it’s time to visit a professional. You can access your cloud data on your computer and all smart devices. This gadget is expected to ship in February.[Source]