Matthew Wallaker writes: “Screens and eyes – partners in the relationship between us and our computers. Yet they seem to be at war with each other sometimes, don’t they? Computers use a font that’s too small, your eyesight changes, you get headaches and stress, and you can’t stand staring at a screen anymore. If you often have to squint your eyes to read what’s on your screen or take breaks to rest your eyes constantly, you should adjust your computer accessibility settings.”