This can greatly reduce the strain on your eyes. For example, in an office with normal brightness of 300-500 lux, the display brightness should be adjusted to around 100-150 cd/m2.
What is the best screen setting for the eyes?
The center of the screen should be located between 15 and 20 degrees below horizontal eye level. A good rule of thumb: Text should be three times the smallest size you can read from a normal viewing position. Again, that normal position should be 20 to 30 inches from your monitor.
What is the best screen brightness and contrast for the eyes?
Most people are comfortable with the contrast set around 60 to 70 percent. Once you have your contrast where you like it, you can move on to the brightness setting. The goal here is to get the light coming out of your monitor similar to the light in your workspace.
Is higher brightness better for your eyes?
As a simple rule, remember that the brightness of your gadget should be equivalent to the light surrounding you, such that both the lights radiance is similar. By doing so, they will blend in, causing the least damage to your eyes.