Those who sit at the PC for a long time can have to deal with irritation of the eyes. Some researchers even believe that staring at the monitor can make your eyes sick. But there are many measures you can take to protect your eyes.
Working on the PC is very strenuous for the body in the long run. This affects the back, for example, and especially the eyes. How much this is noticeable differs from person to person. Eye strain is noticeable through the following symptoms:
dry, burning and itchy eyes (also called “office eye syndrome”)
- watery eyes
- a headache
- Dizziness and nausea
- Unfortunately, permanent irritation from exposure to light via the monitor can also lead to myopia, i.e. visual disturbances and eye diseases.
How does it even come about? If you concentrate on a smaller light source for a longer period of time, your eyes will be overwhelmed. Among other things, this has to do with the color of the light and especially with the blue light of the monitors. The cones on the retina, which can each recognize the three colors red, green and blue, are responsible for color perception. Color vision works through electrical impulses that are caused by a chemical reaction. If several colors can be seen, the wavelengths of which are different, this means stress for the eye. The blue light is short-wave and therefore more energetic than other colors. Blue light is therefore suspected of disrupting the sensitive system of the visual cells and thus releasing substances that are harmful to the eye. One study even wants to prove
At the same time, the blink of an eye when working on the PC no longer takes place regularly, with which the eye would actually be regularly covered with tear fluid. The eye does not receive enough fluid, which leads to dehydration and, in the worst case, injuries to the cornea.
How can you relieve your eyes while working on a screen?
Anyone who sits at the computer for work or often turns on the computer in their free time can take active action against eye problems. So you can protect your eyes.
- Select a monitor with a higher resolution
- Increase the contrast and set the screen to a color in the yellow-green area
- Reduce the proportion of blue light
- Prevent image flickering (a better graphics card is required)
- Optimize sitting position: there should be a distance of 50 to 70 centimeters between the monitor and the eye
- The head and gaze should be tilted slightly downwards (25 to 30 degrees). So the eyes are not completely open and the neck is relieved.
- Sit sideways to the window and avoid other light sources that hit your eyes from behind or in front
- Pay attention to humidity
- Take regular breaks
- Blink consciously and look into the distance more often
- Drops can help with inflamed eyes (seek medical advice)
Protect your eyes with technical helpers
In addition to the tips mentioned above, there are also PC programs that are designed to help protect your eyes while working on your computer. One example is the free LightBulb tool . This is an open source program that works in the background and automatically adjusts the screen settings. The program uses data on sunrise and sunset, for example, and thus determines the brightness setting.
If you work with the Windows 10 operating system , you can use a pre-installed blue light filter. The program – called night mode – can be found in the settings under System – Display – Light. Here you can set times at which the night mode is switched on regularly. The strength can also be set. Tip: If you switch to night mode immediately, you may find the new lighting really hard to get used to. It is best to start with a low strength and gradually feel your way.
The blue light that flickers into our eyes from smartphone screens can also be harmful. That is why the manufacturers offer all kinds of modes here that are better to use.