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LCD Vision Meter In Line With National Vision Standards

LCD vision meter, also known as automatic electronic vision tester, as the standard arrangement in line with the new national vision standards. This vision table applies to children, adolescents or oneself

Human general physical examination, LCD Visual Acuity Chart visual barrier screening and clinical diagnosis and treatment of ophthalmology and optometry, academic, scientific research, teaching and audition and other aspects of vision determination. Especially for the air force recruitment examination of visual inspection, to solve the medical staff command, evaluation, recording, statistics and other work on the results of the results, so that the results more just and reasonable.

LCD vision meter, also known as automatic electronic vision tester, LCD Visual Acuity Chart as the standard arrangement in line with the new national vision standards. This vision table for children, adolescents or adults in general physical examination, visual barrier screening and ophthalmology and optometry clinical diagnosis and treatment, academic, scientific research, teaching and audition and other aspects of vision determination. Especially for the air force recruitment examination of visual inspection, to solve the medical staff command, evaluation, recording, statistics and other work on the results of the results, so that the results more just and reasonable.

How to adjust the mode of liquid crystal vision

Try to adjust the brightness and contrast of the monitor, change the background color, see how the effect. If you want to use the computer every day for a long time, perhaps the installation as a security screen. Look at the computer monitor to see the eyes tired, this experience I am afraid that no one encountered it This state continues to cause eye strain, and blurred vision, shoulder acid, headache, LCD Visual Acuity Chart body fatigue, vision loss and other illnesses. Causes of eye fatigue include: light and reflected light on the display, flashing the screen, and so on. Compared with the CRT, the liquid crystal display is basically no screen flicker problem. In contrast, the mapping of light and reflected light has become a liquid crystal display problems. When the fluorescent light or human face, etc. mapped to the screen, it increased the difficulty of reading the screen, LCD Visual Acuity Chart so that eye muscle activity than the normal level, it can be said that this cause the eye fatigue. In addition, the liquid crystal display has recently developed toward high brightness and high contrast. This is conducive to color display, but also make the eyes more easily tired. Therefore, when working with a personal computer to try to find ways to avoid eye fatigue. Adjust the brightness of the screen, contrast and color adjustment screen contrast and brightness, color design or graphics, such as the need for strict color display, you may need to have a high brightness and contrast. But if a long time for ordinary business, then appropriate to reduce the contrast and brightness can reduce eye fatigue. The monitor has the functions of adjusting brightness and contrast, up and down left and right deviation and tilt. Try these features to adjust the brightness and contrast. But the brightness and contrast is too low, then more likely to cause eye fatigue, so try to tune several times to suit their own state. For the adjustment method, please refer to the instructions of each monitor. In addition, LCD Visual Acuity Chart through the Windows screen settings, you can also change the window color configuration. Select [Display] of the control panel, click [Appearance] → [Detail Settings], you can change the color of your favorite configuration. In the initial setting, because the window background of the white is too strong, it changed to cream or light green will have a good effect. Please select [window] in [Advanced], and replace it with color [color 1]. Depending on the software, sometimes even if the above changes, the window color can not change. In the menu of such software, there is a single window background setting command, please confirm with help. Install the view screen on the screen To reduce the screen reflection and mapping to avoid eye fatigue, the most effective way is to install the screen as a security screen. Transmittance refers to the ratio of light through the screen. The smaller the value, the darker the color of the view. In the pictures and photos and other processing operations more need to try to close to the natural color, it should choose a high rate of transmission products (80 ~ 90%). And usually feel that the screen dazzling people the best choice of low transmittance products (50 ~ 70%). With respect to reflectivity, the lower the value, the better the effect of preventing mapping, and the eye is not easy to fatigue. Although the choice of nominal value of 0.5% in the following products have a good effect, but the price is also more expensive.