It's difficult to imagine our lives without digital devices and all the tools and information they enable us to access, from browsing our emails on the road, updating our Facebook status to checking the weather forecast and train times or sending a photo. Yet it's not only our ability to be accessible anywhere at any time that has undergone a revolution – our vision has also changed.
Our eyes are constantly switching from near to mid to far distance. Many heavy users of smartphones and tablet PCs in their 30s and 40s, often notice that their eyes are irritated, strained and tired on a more frequent basis. Our eyesight and visual perception starts to deteriorate, our eyes get more stressed – and so do we.