I feel like it's likely misleading, too. Eye breaks are about changing your focal plane, and if you're looking beyond the monitor to rest your eyes, you won't be seeing the screen.
You can experience this with a window with dry erase markers. Focus at a far off point and the dry erase is illegible and may not even disturb your far vision. Focus at the glass and you can read whatever you wrote (subject to penmanship).
Heads up displays often have optics to project onto a medium distance focal plane, otherwise your eyes have to work harder and you're not really able to see the scene and the display at the same time.
You can experience this with a window with dry erase markers. Focus at a far off point and the dry erase is illegible and may not even disturb your far vision. Focus at the glass and you can read whatever you wrote (subject to penmanship).
Heads up displays often have optics to project onto a medium distance focal plane, otherwise your eyes have to work harder and you're not really able to see the scene and the display at the same time.