How to protect my eyes when I have to stare at my computer screen for longer than 10 hours every day?
user
Your eyes are not designed to stare at one thing in front of you for many hours. Here are several ways to protect your eyes:
1. The 20/20/20 rule
For every 20 minutes looking at the screen, look at something else at least 20 feet, or 6 meters away for 20 seconds. Set a timer to remind yourself if necessary.
2. Blink more
It's often ignored that you are likely to blink less when looking at the screen, causing dryness and irritation. A solution is to blink 10 times every 20 minutes, and artificial tears can also relieve the dryness.
3. Adjust lighting and position
Adjusting the brightness of your screen to match the level of light in your workplace can reduce eyestrain. If the screen has a lot of glare, try adjusting the lighting or using a matte screen filter. 
The position of the screen also matters. A good rule is to sit about at arm's length away from the screen, and position the screen so the eyes gaze slightly downward.
4. Screen and filter
LCD screens have a blue light emission, which has probable damage to eye health. Some screens have an adjustable color temperature to reduce the emission, or you can apply a blue light screen filter.
Some people are more sensitive to PWM flicker of the screen, and should check the product information before purchasing. The flicker is also harder to perceive at higher brightness settings.
assistant
Are blue light blocking glasses also effective?
user
Blue light blocking glasses have gained popularity as a way to alleviate digital eye strain and improve sleep quality. While there is some evidence to support these claims, the overall effectiveness of blue light blocking glasses is still under debate. Some studies suggest that they can improve sleep quality and reduce eye strain, but others have found no significant effects. Additionally, the long-term effects of blue light exposure and the potential risks of blocking blue light are not yet fully understood. Overall, while blue light blocking glasses may provide some benefits, more research is needed to fully understand their effectiveness and potential risks.

The scientific and technical factors involved in studying the effectiveness of blue light, its intake, and blocking of the eyes include the measurement of the specific wavelength range of blue light, which is typically between 400 to 500 nanometers. Studies may use various methods to measure blue light exposure, such as spectrophotometers or radiometers, and may also take into account factors such as duration of exposure, intensity, and timing. In order to study the effectiveness of blue light blocking glasses, researchers may use a variety of methods, such as comparing the effects of blue light exposure with and without glasses, measuring the reduction in blue light transmission through the glasses, and evaluating the impact on visual performance and physiological measures such as melatonin production. Additionally, the study of blue light and its effects on the body may involve examining the mechanisms by which blue light affects the retina, circadian rhythms, and other physiological processes.
assistant