As the number of people working from home continues to rise, so does the amount of time spent working remotely on a computer screen.
The extra time spent in front of a computer, whether it’s a desktop, tablet, e-reader, or cell phone, creates more chances for eye-related problems. This can lead to what is known as Computer Vision Syndrome or CVS. An incorrectly placed device can lead to CVS, leading to dry eyes, irritation, loss of concentration, and an overall negative impact on work performance.
This happens for several reasons. First, significant muscular effort is required to maintain clear vision at close working distances. As the hours pass, the visual system simply experiences muscle fatigue. Second, sustained close work also demands tremendously focused attention and can result in perceptual tunneling that increases distraction and reduces attention span.
Finally, anyone who works on a computer has impaired blink function. Blinking produces moisture and is an essential component of how the eye cares for itself. Regular blinking occurs about 15 times per minute. However, studies indicate that blinking only occurs 5-7 times a minute while using computers and other digital display devices. Less moisture on the surface of the eye can cause blurred vision, tearing, and burning eyes.
Here are five ways to combat computer vision syndrome and maintain optimal eye health.
1. Position the visible area of the screen slightly below line of sight. Assuming good desk and chair ergonomics, the computer should be positioned to face slightly downward.
Looking slightly down is more pleasing to the eye than looking straight ahead or looking up.
It helps lower the eyelid and helps eliminate the chances of being affected by drafts, especially when there is an air conditioning unit in the room. Helps protect against dryness. Additionally, proper screen positioning promotes good posture with both feet flat on the ground.
2. Remove or reduce screen brightness. Light toxicity or discomfort can be the result of too much glare. It can affect one’s ability to perform their normal job function. A good test is to place a folder on your head while looking at your workstation. If it becomes easier to read with the folder the user may have disability glare and discomfort problems.
Glare can be reduced by placing a screen on the computer terminal. Anti-reflective coating on glasses can also help.
3. Minimize exposure to blue light. As computers become more modern and sophisticated, so does blue light exposure. This type of light has immediate consequences, including the impact on long-term macular health, the part of the eye that processes 20-20 vision. Also blue light can affect the sleep cycle. Filters and coatings can help reduce blue light exposure.
4. Allow workstations to allow for peripheral vision. Workstations should be built to allow for ambient visual stimulation or eye activity in peripheral vision. Vision works best when exposed to a full range of visual stimulation, not just one type, while blocking out others.
5. Take breaks. To better prevent computer-related eye strain, users should keep their attention on blinking, place screens in the right place, avoid multiple screens, and take breaks. Getting up, moving around, and perhaps slightly stretching or rotating your arms, wrists, neck, and back will help relieve a high degree of eye stress and ensure a more productive work experience.