protect your eyes from computer

How to protect your eyes while using your computer

protect your eyes from computer

Since most of us spend hours in front of a computer monitor, it is advisable to protect the eyes from potential damage. Do not forget that the following recommendations apply only to a fit of your workplace so as to better protect your eyes and does not meet the other ergonomic needs related to the work in front of the computer.

Proper eye care

1. Take five minutes apart every one hour, looking at a distant point and out of sight of the computer monitor.
2. Just close your eyes for a few minutes when your work requires an extended period of time facing the computer.

Maintaining proper distance and other safety measures

1.  Keep the distance between the monitor and your eyes from 40cm to 76cm. Most people find the distance between 50cm and 66cm more comfortable.
2.  Make sure that the top of the monitor is at a level slightly below eye level.
3. Tilt the top of the monitor away from you at an angle of 10 ° to 20 °. Most monitors are equipped with tilting screens that allow you to adjust the monitor to create a better viewing angle.
4. Keep your screen free of dust and fingerprints.
5. Use an adjustable chair allowing you to sit at proper angle and distance from your computer monitor screen.
6. If your work involves prolonged sending of data, use a briefcase to protect any reading material or reference material. Place the briefcase close to the monitor and at the same distance between your eyes and your monitor. This allows your eyes to stay focused when they look from the monitor to the reading material.
7. Use a work surface that is 66 cm off the floor.
8. Keep the distance from the front of your chair and the space of your knee fold between 5cm and 10cm.
9. Use a font size that is visible. The size of the characters is an important factor, since it determines the distance that the user prefers to visualize the monitor.

protect your eyes from computer

Changing the appearance of text fonts on your computer screen

1. Point your cursor anywhere on the desktop and right click on "Properties". The "Display Properties" window will appear.
2. Click the "Appearance" tab in the "Display Properties" window.
3. Go to the "Font Size" from the drop-down menu and choose "Large Fonts" or "Extra Large Fonts" instead of "Normal" font, which has already been preselected by the system. In that case, if you are working on a Windows XP system. Once you have made a choice, you will see a sample of what you chose at the top of the "Display Properties" window. Choose what is comfortable for your eyes.
4. Click the "Apply" button.
5. Close the "Display Properties" window.

Ensuring good lighting

1. Use fluorescent tubes to achieve low illumination levels. Higher levels erase the image on the screen. Lighting levels refer to the amount of light falling on a "lux" or "foot candles" measuring surface (metric and English metering systems, respectively).
2. Provide luminaires with light focus. This type of lighting allows workers to adjust the lighting level according to their preferences, but the lighting level should be equal to or less than the suggested 50 foot candles ideal.

Ensuring proper illumination by contrast adjustment

1. Contrast is the difference of luminance between two areas (of tasks and of background). Avoid excessive contrast within the field of vision and reduce the contrast to acceptable limits, avoiding extremely light or dark surfaces. The main reason for this is that vision problems can arise and visualization becomes difficult when there is great contrast between the point of service and adjacent surroundings.
2. A good screen configuration also has separation between contrast control and brightness control. Adjust the brightness of the background to the characters by adjusting the contrast controls.
3. Control the amplitude of the light emitted by the characters by adjusting the brightness controls.

Ensure proper lighting in your work environment by inhibiting strong brightness

1. Strong brightness is caused by the uneven distribution of illumination in your field of vision, as well as the brightness of luminaires or windows. You can inhibit this brightness by reorienting your workplace and moving the strong light sources out of your line of sight.
2. Cover the windows with shutters, curtains, blinds or filters to reduce the brightness of the sun or fixtures in your work environment.
3. Use panels to block light intensity, thus reducing brightness.
4. Adjust the contrast of the computer to change the brightness of the screen and the characters, which will also reduce the brightness.
5. Position the screen at certain angles towards the light source.
6. Avoid wearing bright clothing that can cause a glow that reflects on the screen.
7. Cover your monitor with an anti-glare screen.

protect your eyes from computer

Ensuring proper lighting in your work environment while avoiding reflected brightness

1. When a worker can see a light on their surface of the screen, this is the case of reflexes. This glow can also be seen on gently polished table tops. Reflected brightness sources can be windows, walls, reflective fixtures or reflective clothing. You can control the reflected brightness by the methods suggested in each of the following steps.
2. Reduce the intensity of the light source by providing covers for the luminaires, covering the windows or choosing appropriate panel height.
3. Provide a matte or flat finish on moving equipment or walls.
4. Tilt the monitor to remove the reflection and keep away from your line of sight. Tilt features are now included in most monitors.
5. Cover the screen with a recorded surface or with different types of filters.

Rearranging the office to reduce lighting problems

1. Position the workstations between rows and luminaires.
2. Position workstations away from windows.
3. Position all workstations parallel to the windows.
4. Use panels to block light.

Selecting the colors in the video preview to avoid a vista glitch called the McCullough Effect

protect your eyes from computer

1. When the color of the video monitor screen is green, some users see pink residual images. This is an unusual phenomenon called the McCullough Effect, causing people who use computers for hours to see a pink fringe around certain images. Although this is harmless, the residual image is created when the retinal nerve cells that perceive the green color become saturated and the red color appears in place. Choose non-green video monitors to prevent this vision problem from occurring.