Lightweight eye care program

Question

I'm looking for a good lightweight program which forces me to have my eyes relaxed from time to time after working with computer.

• It is preferred if it blacks out the screen for a while from time to time, e.g. every 30 mins for about 5 mins.

• Taking care of the eyes while working computers is the concern of the question, not exercising on the desk at the office.

• It is highly suggested if it provides some exercise for the eyes — and not for the whole body — in the breaks.

It should run on Windows. It should be lightweight so that it runs well on startup. It should be free of charge (it doesn't matter whether it is open source or not).

Answer 1

You could use the AutoHotKey Script below. When running, it turns off the monitor for 5 minutes every 30 minutes. Any keyboard or mouse input will wake up the screen, though this can easily be made not to happen. The script can be compiled into a .exe executable so that you can also share it with friends/collabs and/or set it to run at startup.

Loop
{
     Sleep (30 * (60 * 1000))
     SendMessage, 0x112, 0xF170, 1,, Program Manager 
     Sleep (5 * (60 * 1000))
     Send, {LWin down}
     Send, {LWin up}
}