Why are my eyes aching/straining using my LCD monitor?

is it my glasses that have a tint in them, ive only had them a couple of months, do they need changing? am i spending too long in front of the computer screen? its a 19 inch LCD screen, do i need to turn the brightness down? i spend most times in doors sat in front of my computer, hours of the day into the... show more is it my glasses that have a tint in them, ive only had them a couple of months, do they need changing? am i spending too long in front of the computer screen?

its a 19 inch LCD screen, do i need to turn the brightness down?


i spend most times in doors sat in front of my computer, hours of the day into the night....could that be the reason my eyes are hurting, aching and straining?


im a male in my early forties....id appreciate any advice or thoughts.
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