you would strain your eyes. Additional Tip: a monitor horizontal viewing angle. A computer user should look at the computer screen from the above. If in the normal sitting position we draw a straight line from a computer user's eyes to the computer monitor, it should end somewhere closer to the top of the screen i.e. in the upper third of the screen. This ensures that the user looks straight and a bit down when working at the computer, which in turn ensures that the neck is kept straight and the muscles of the neck are not strained. Imagine that one looks in the middle of the computer monitor. They would also need to see the top of the screen but we're not used to lift just our eyes to do that, so a person would slightly lift a head, and this is not recommended when working with the computer for a long time. The screen brightness tip. Too bright screen tires the eyes very quickly and can damage them, so I recommend finding the time and adjusting the screen brightness and the contrast as suits you best. This should be done with the application that has a white background, for example when editing a text document. It should be comfortable for a user to read and write. What I usually do is firstly set the contrast to zero and the brightness to the lowest acceptable for me level, then see if I am comfortable with the screen. Usually it's