Spend too long looking at a computer screen and the health problems you can run into include headaches, blurred vision, dry eyes, and more. One obvious way to minimize the risk is to spend less time looking at your computer, though that's easier said than done—if you can't take extended breaks, try taking short ones to briefly rest your eyes. Even just blinking more often can help keep your eyes better lubricated and less prone to strain.
All About Vision suggests dimming indoor lights, reducing the amount of light coming in from outside, and reducing glare to make your eyes more comfortable. On macOS computers, you can use Night Shift (in Displays under System Preferences) to reduce the amount of blue light from your monitor in the evenings. Windows calls the same feature Night Light—you can find it by opening Settings then clicking System and then Display.
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