Eyes get tired when working at a computer. how to configure the monitor correctly
The problem of eye fatigue is familiar to me not by hearse. In general, with a long sitting before the monitor, even in a healthy person, the eyes begin to get tired and, sometimes, get sick (under the word “long” each person has his own period of time).
In general, as far as I remember, the OPALISTS advise to sit at the computer (TV) no more than an hour a day. But, I think, in the age of information technology. for many professions, to fulfill this requirement is practically unrealistic (accountants, programmers, designers, designers, etc.D.).
Very often, eye fatigue is associated with non.optimal monitor settings and the wrong mode of operation for PC. In this article I want to dwell on these basics that help reduce the load on my eyes and maintain vision.
I am not an optometrist and I have no medical education. With frequent eye fatigue. I recommend visiting a doctor. Everything that is described below is only my point of view on the problem.
Let’s start a review with a 27-inch universal monitor of the average price segment-Gigabyte G27Q.
IPS-like matrix has a resolution of 2560 × 1440 (2K), which when working at a frequency of 144 Hz will give a smooth picture in dynamic scenes of games or cinema. Condeous to the real coverage of shades of 92% according to the DCI-P3 standard allows you to successfully use the device for web design, graphics and installation.
The chip of this device is the implementation of the latest version of AMD Freesync Premium Pro, which supports the work in the expanded brightness range of HDR. It eliminates the failures and frames of personnel, significantly reducing the tension of the eyes and nervous system.
The imbalance of brightness is one of the most dangerous factors. Incorrect setting of this parameter can have a destructive effect on vision, especially if high brightness is exhibited during prolonged work in the dark.
The incorrectly configured contrast of the monitor makes the user carefully peer into the image. At this time, the eye muscles are in constant tension, trying to focus on blurry contours. A short viewing of such a monitor can lead to headaches. Long work is guaranteed to turn into vision problems.
Resolution, diagonal and pixel density
If earlier there was at least some specific “ligament” between the diagonal of the monitor (length in cm. From one corner to another) and its resolution (number of points that provide an image)-now you can find a variety of “extremes”:
A New Smartphone Trick to Make Your Eyes Fell Less Tired
- 13 inch monitor (33 cm) with a resolution of 4K (3840 by 2160). Pixel density: 338 ppi (pixel density calculator). Of course, when working on it, it is necessary to change the scaling in Windows, otherwise all the elements on the screen will be very small!
- 31 inch monitor (78.74 cm) with a resolution of FullHD (1920 by 1080). Pixel density: 71.07 ppi. The image on it will be large, well-uniform without any scaling. However, if you look at small elements, for example, at the text, you will see that the letters are not smooth, but with “cloves” and bumps, as if consist of small squares (pixels). Cm. Screen below.
Pixel density. how it looks in practice
So, this parameter (pixel density) can in some cases affect work: both in the best and in the worst side.
Case 1. Suppose you have a large screen diagonal and low resolution (peak density.: 71.07 ppi). When working with small text on such a monitor, eyes can get tired (t.to. The font will not be so smooth, and you will constantly see these “cloves”. t.e. strain vision. Purely, in my opinion, for constant work with texts and fonts. Pixel density should be at least 100! // But there is much individual. ).
On the other hand, if you watch movies on this monitor or play, leaning back in a chair, you will not notice any pixelization of fonts in principle!
Case 2. Take the opposite situation. You have a monitor with pixels density 338 PPI (scaling value is set in Windows).
Text, fonts, some small elements on it will look great! However, if you run any old game (or an application not optimized for the ability to scaling)-then there is a very high probability of “problems”: its window will not fit into the screen or will be very small.
Honestly. Don’t know. You can take some kind of “average” monitor (from 90-150 ppi), or if you have a workplace. Put a couple of monitors: one for one, the other. for another.
Type of matrices
The matrix is a photosensitive element, on which the quality of the picture on the screen strongly depends (of course, its type also affects the final cost of the monitor).
Today in computer stores, monitors with the following matrices are most common:
- TN (TNFILM). provide generally a pretty good picture (despite the fact that many consider them dull). Differ in a quick response (ideal for dynamic games!). Another plus: their relative cheapness. Cons: the colors are not very high quality, a small angle of view;
- IPS. provide excellent color rendering and they have a wide viewing angle. However, there is a drawback: a higher response time (because of which it is quite uncomfortable to play on some models of displays-trains are visible with sharp movement of the character on the screen).
What you need for design and games
Dear monitors with increased characteristics are not needed by everyone. As a rule, they are chosen by gamers and designers.
5 Tips and Eye Exercises for EYE STRAIN Relief
Color depth. 8 bits and above
Denotes the number of colors that the monitor can reproduce. For example, the IPS matrix with 8-bit depth displays 16.7 million shades. This is a minimum for working with images.
Color coverage. 95% SRGB and above
Shows what part of the colors available to human vision is reproduced by the monitor. The higher the indicator, the more natural the colors on the screen look.
G-Sync, Freesync, Adaptive-Sync
Provide the smooth reproduction of graphics. G-Sync is compatible only with NVIDIA. Freesync, Adaptive-Sync are compatible with AMD and NVIDIA.
1-2 ms-response time
Shows how quickly the image changes. If the response time is large, the “train” is observed. For shooters, races and other dynamic games, you need a response time of not more than 1-2 ms.
120 Hz. screen update frequency
The higher the frequency, the faster you notice the enemy. Monitors with 120 Hz and higher are suitable for online games, where the reaction rate is important. For the remaining 60 or 75 Hz, it will be enough.
Pleasant, but optional functions: preinstalled profiles, increasing contrast, sight. for shooters, timer. for strategies.
Selecting and setting up a liquid crystal monitor
Initially, you need to figure out what types of monitors are, since their setting directly depends on this. Truly “harmful” displays have not been made for a long time, so it can be argued that all modern models presented on the market are safe for the eyes, subject to operation rules.
ELT monitors were previously actively used, the functioning of which was based on the use of an electron-ray tube. They harmed the organs of vision quite strongly and consumed a lot of energy. They were replaced by new LCDs (liquid crystal) LCD screens, which are gentle for our eyes. Depending on the matrix used, they are divided into three categories: TN, IPS and MVA/VA.
The most affordable option is the screen with TN matrix, which provides a rather poor viewing angle. If you look at it from the side, the colors of the picture are very distorted, which contributes to the rapid fatigue of the organs of vision. The correct location of the monitor relative to the eyes is extremely important in this case. Sitting to such a display should be clearly opposite, otherwise it will be difficult to distinguish a picture or text.
This type of matrix is the highest quality and safe for the eyes to date. It provides a good angle of view and color saturation. The disadvantage of such a screen is the high cost. As a rule, IPS matrix is found in laptop monitors located in the middle and high price segments.
The best option in the price-quality ratio is MVA/VA Matrix. It is somewhat inferior to IPS in saturation of colors, but it is almost impossible to notice this with the naked eye. Such monitors provide a good angle of view, but at the same time cost an order of magnitude cheaper than IPS. This is a good choice for those who spend a long time at the computer.
Since ELT monitors are no longer used, we will consider how to configure a liquid crystal type monitor from any of the above matrices.
It should be borne in mind that the screen parameters for comfortable work may vary in each case. It all depends on the individual characteristics of the human visual system. However, there are a number of simple recommendations that should still adhere to.
Which monitor is better for the eyes?
To minimize the negative impact of a computer or laptop on the quality of vision, you should pay attention to a number of characteristics of the monitor when choosing it.
One of their most important components is the monitor matrix. There are currently three types of liquid crystal screens:
It is important to understand that the specific type of matrix will not affect the quality of vision. But uncomfortable sensations can occur due to incorrectly location of the screen relative to the eyes. For example, a too large slope of the monitor or its deviation from the perpendicular in the vertical plane. So, screens with TN panels can influence vision with their excessive tilt forward. And the IPS devices are characterized by a Glow effect when you have to tilt the monitor to different positions depending on the lighting to see a clear image. If you select a screen with a VA matrix, pay attention to the crystallization parameter, which depends on the features of the protective coating.
Also, when choosing a safe screen for the eyes, find out what kind of backlight it has. LCD monitors, which previously used illumination with fluorescent lamps with a cold cathode (CCFL), remain in the past. They were replaced by devices with LEDs (LED). Often there is an opinion that lamps with LEDs built into a computer monitor can cause severe eye fatigue. This is not quite. There is a characteristic dependence for devices with W-LOD on the quality of the wavelength of wavelength. Since white LEDs do not exist in nature, blue are used, and the necessary color is obtained thanks to a special composition of phosphor and film filters. Overwork of the visual organs can cause an unbalanced glow intensity in the long.wave zone Spectra. The best eye monitor should be equipped with two (GB-LOD) or three (RGB-LOD) flowers. He will certainly be more expensive, but this will reduce the risk of visual impairment when working at the computer.
No less important characteristic. frequency. In modern screens, the optimal frequency parameter is 120 Hz, there are monitors with 144 Hz, this is due to the active use of 3D technologies. A great influence on the quality of vision has a response time, especially on dynamic devices. If pixels slowly switch on the monitor, this causes the appearance of the train behind moving objects, which lubricates the image and harms vision. A great option would be to choose a monitor based on TN.
The brightness of a computer monitor is also a very important factor that should be considered when buying. From the point of view of the physiology of the visual system, this parameter is considered the most optimal for an indicator of 100 thread. However, with natural daytime or enhanced artificial lighting, the brightness of the monitor should be from 150 to 200 nt, this can do any modern screen. It is important to know that the higher the brightness indicator, the higher the risk of harm to vision. At the same time, the eyes are forced to strain with excessively low brightness. On each monitor, you can always adjust the level of this parameter.
Resolution is another important point. Remember that, regardless of the real size of the screen, the optimal for vision will be the “native” resolution of the device. The display of the picture with a smaller number of pixels causes its interpolation and reduces the level of clarity. Monitors with high resolution must be chosen with a powerful video card. It is necessary to take into account the fact that all the elements on such a device will seem visually less than on an average or small screen.
Due to the features of the structure of the human eye, the image is comfortably perceived by the maximum deviation of the view from the perpendicular by 18-20 °. In other words, the edges of the monitor should optimally be visible at an angle of 36-40 °. Ophthalmologists recommended safe monitors should be at a distance of 1.5 to 2 diagonals.
To understand which monitor is better to choose, check out in the store with all its characteristics and ask questions to the consultant.
In appearance, the model is similar to Acer Nitro VG270UPBMIIPX, but allows you to adjust the screen in height, angle of inclination and even turn it into another plane. The central stand of the stand at the top is equipped with a pen that facilitates the carrying. The monitor is equipped with AMD Freesync and Nvidia G-Sync Compatible (synchronization technology). Supports HDR. There is a mode “Picture in the picture”. Among the game functions is the sight that eliminates the blurry of the image, the timer, the reflection of the FPS, the highlighting of the dark areas (black equalizer), with which you can see objects in the shade. Active noise reduction is provided, t. e. When the microphone connects to the corresponding connector, only the player’s voice is heard without extraneous sounds. In terms of technical characteristics of the image, Acer Nitro VG270UPBMIIPX is almost similar (color rendering. 95%, response time. 4 ms). Two additional USB ports, without speakers. There is no wall mount. It also differs much more consumption power. 75 watts.
- equipment (all the necessary cables);
- image quality;
- convenient function management using special software;
- resolution. WQHD;
- quick response;
- a large supply of brightness;
- set of gaming functions;
- Built-in USB hub.
- the lights of the matrix;
- short power cable;
- There is no built.in acoustics;
- The noise reduction in the microphone is maintained only for the headset from the Aorus line from Gigabyte;
- USB and audio units are bred down;
- Big stand.
Aorus AD27QD costs 46900. Its design is not particularly impressive, but this monitor is simply created for gamers, t. to. equipped with many necessary options. This excellent acquisition will make the game more spectacular. He does not have such impressive indicators of pixel response time as in the Acer Nitro VG270UPBMIIPX model. Aorus is inferior to her by the lack of built.in speakers and the possibilities of wall.mounted installation, although the lack of speakers can be replaced with acoustics.