There is probably a focus adjustment somewhere on the monitor. If it's not in the normal controls, it may be in a service mode somewhere, or possibly even a knob or screw inside the case. I can't suggest that you open the case, as I don't want to be responsible for your head shorting that big glass capacitor, but it's likely that you can refocus it. Exactly how I can't tell you. Try googling for your monitor's model number and ``focus'' or ``service mode'' and see what comes up.
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Bitt Faulk