Working in Computer for long hours is not good for your health. Especially looking at monitors for a long period of time will definitely harm your eyes. You must often take breaks at regular intervals. There are numerous utilities available out there to remind you to take breaks. The one we are going to discuss now is SafeEyes. SafeEyes is a free and open Source Linux alternative for EyeLeo, a MS Windows-only app. As the name suggests, SafeEyes will protect you from Eye Strain by reminding or forcing you to take breaks after a particular period of time. During the break, it will suggest you some simple exercises like walking for a while, rolling your eyes etc., to relax yourself. If you are a hardcore user who work in front of computers for long hours, I recommended you to use SafeEyes to prevent eye strain in Linux.