This is good for your eyes ...

Really. I'm referring to the real things. After 30-40 minutes of continuous near work (such as what you are doing right now), look at something far far away (such as the green trees). Going for regular walks, or jogging or cycling or 'rolling', in the park is also good for your eyes. And by the way, it's also good for the trees. They need your carbon dioxide, your 'waste water' and your company. Just don't leave behind any rubbish that takes a long long time to decompose or disintegrate. However, you are most welcome to leave your worries, your fears or any negative mental feelings here. The wind will disperse them effortlessly.