It’s hard to imagine a modern person not sitting at the computer. Most of us use PCs at work or at home, and often there and there. In addition, there are tablets, smartphones, and modern TVs are getting closer to computers. However, computers have their own application scenario, which has its pluses … and minuses. By cons, of course, is the fatigue of the eyes from the long work behind the monitor. Let’s try to figure out how to avoid the negative effect and how to choose the right monitor for yourself.
Monitors and Eyes: Everything is complicated
The main task of the monitor is to display the image. That is, to radiate. Radiate visible light, and with it – the flow of invisible, but still affecting the eyes of radiation of different ranges. On old models it was so tangible that often it was necessary to hang a special transparent filter on them, which together with harmful radiation extinguished and a noticeable part of the useful one.
But even modern monitors, if you work for them for a long time, take a tribute from your health. You can suddenly find out that your eyes are tired, the intracranial pressure has increased without cause, and the sandy fairy Sandman is filling his eyes with sand. The people around you may notice that your eyes are red: the case is in the circulatory disturbance due to the constant tension of the eye muscles. And it’s good if they do not think anything more evil about you!
And over time, an active user can develop myopia, reduce visual acuity, even disturb brain activity due to eye strain.
The fact is that the image on the monitor (unlike the real world) is not continuous. Looking at the tree outside the window, you see his trunk motionless. But its leaves, if they are shaken by the wind, can cause you a kind of dizziness. The monitor updates the picture incomparably more often than real leaves in the wind, which is reflected in the eyes.
Pay attention to a parameter such as the response time of the monitor: now it can be from 5 to 7 milliseconds, which means updating the picture at a frequency of 60 to 100 Hz. The higher the refresh rate, the closer the picture to the real world and the less it strains the eyes. But even the highest refresh rate will be different from the real world that does not divide into individual frames.
Types of monitors: pros and cons
To decide which monitor is best for the eyes, it is worthwhile to consider what general options exist. Today, there are many different kinds of monitors available on the market, both modern and old, which are stuck in warehouses or are looking for new owners. Consider the types of monitors and their influence on the eyes in the form of peculiar “pairs”. This approach facilitates choice.
- Flat / kinescope: By and large, now there is only one reason to seek out on the flea market an old huge CRT monitor: if you shoot a video blog on retro technology. Well, or love to have the tail of your fluffy pet hanging from the monitor. In all other respects, modern monitors have long surpassed the old ones. The resolution, brightness, contrast, color reproduction on new monitors is much better. Indeed, there was a time when the colors on the TFT-screens were unnatural, it was better not to look at them at an angle, and it was difficult to choose the optimal refresh rate. But now the producers have decided all this.
- LED / TFT / LCD. The most advanced technology for today is LED (LED monitors). They provide better color rendition and less load on the eyes, but they are more expensive than others. However, if you do not “maniacize”, then a properly tuned TFT or LCD can work without problems.
- Matte / glossy. This dilemma is more about laptops, and rather it’s a question of a usage scenario. Indoors, both of them show themselves well. Glossy screens show a more lush picture, colors are brighter, black is especially deep. On matte screens, the colors are relatively muted. However, this advantage turns out to be a disadvantage if you work in the sun. A glossy screen can turn into a mirror in which you will find it difficult to see the image behind your own reflection. But the matte screen successfully extinguishes the glare and provides a comfortable work.
- Diagonal : The bigger it is, the bigger the picture on the screen. However, monitors with a large diagonal should be located further away from the eyes. If you have a large table, you can put the monitor away from yourself and use the pluses of the size. If not – take a smaller model.
- Resolution: The higher it is, the more useful information is displayed on the screen. On the other hand, this leads to a decrease in the size of fonts and other objects that may need to be increased in the system settings.
- How to treat the curved screens – we do not know yet. Modern monitors (especially gaming) are often as if skirting the user in a semicircle. Probably, this is even good for the eyes, because it forces the muscles to work and does not allow the eyes to be fixed in one position.
- But cheap LCD monitors, released in the first half of 2010, should be avoided. In them, both the image and the eye protection are far from ideal (although the price in the secondary market can be quite wasteful).
A few valuable tips
- Perhaps your monitor will be less pressure on the eyes, if properly calibrated. The adjustment of the monitor for the eyes should be done under the same lighting conditions in which you normally work.
- Polarization screens, fashionable before the early 2000s, are still being manufactured. But their main task now is not to let their neighbors see from afar what you are doing.
- The distance from the eyes to the monitor should start from 60 cm (if we start from a relatively small diagonal of 19 inches). If it is more – you can move away, but approaching, if it is smaller, is not recommended. It’s better to get into the system settings and increase the fonts.
- It is better to set the monitor so that its upper limit is at the level of your eyes, and bend its lower part closer to yourself. Usually laptops and monitors have a design that allows you to choose the optimal angle of inclination. Instead of the height of the monitor, you can adjust the height of your chair.
- Do not forget about the breaks (about five minutes for every hour of work). You can install a special “reminder” program on your computer or phone.
- Include in the menu more black currants, blueberries, carrots, dill, parsley and (hopefully you understood correctly) hawthorn.
- When buying a monitor, take a closer look at models with rotary design and portrait mode. They have a better viewing angle in the vertical and horizontal, which affects the image quality strictly positively. But, alas, with the growth of the average diagonal of the monitor such models are encountered less and less.
Not so terrible modern monitors, as they draw lovers of caps made of foil. Manufacturers have already reached the level of security, in which you do not ruin your eyes by reworking the monitor for an extra hour. However, it is worthwhile to listen to advice, so as not to make the job a constant test