Computer Vision Syndrome: Causes and Prevention

A condition that's becoming increasingly common, particularly among those of us who spend many hours each day staring at a screen, is computer vision syndrome (CVS). CVS, also known as digital eye strain, is a group of eye and vision-related problems resulting from prolonged computer, tablet, e-reader, and cell phone use. Many individuals experience eye discomfort and vision problems when viewing digital screens for extended periods. The level of discomfort appears to increase with the amount of digital screen use.

With the rise of remote work and digital entertainment, it's no surprise that cases of CVS are on the rise. But what causes this condition, and how can we protect our eyes from the strain of staring at screens all day? 

Understanding the Causes of Computer Vision Syndrome

When it comes to understanding the causes of computer vision syndrome, several factors can come into play. The strain on your eyes from using a computer for extended periods is thought to be caused by the high visual demands of computer work. This is greater than the visual abilities of the person to comfortably perform them. When you're working at a computer, your eyes have to focus and refocus all the time. They constantly move back and forth as you read, along with reacting to images constantly changing or moving on the screen, which can tire your eyes.

Another cause of CVS is poor lighting. Many office environments are lit with harsh, fluorescent lights, which can create a glare on computer screens and cause eye strain. Additionally, the angle and position of the computer screen can also contribute to CVS. If the screen is too high, low, close, or far from your eyes, or if there is glare from lights or windows, this can lead to eye strain, headaches, and other uncomfortable symptoms.

The Impact of Computer Vision Syndrome on Daily Life

The impact of computer vision syndrome on our daily life can be significant. It's not just about suffering from dry, itchy eyes or headaches at the end of a long workday. Over time, these symptoms can lead to more serious problems, such as difficulty concentrating, decreased productivity, and even long-term vision problems.

CVS can also lead to physical discomfort in the form of neck, shoulder, and back pain. This is often the result of poor posture while trying to view a screen that is not at the correct angle or height. Furthermore, CVS can impact your sleep, particularly if you're using screens late at night. The blue light emitted by screens can interfere with your body's natural sleep-wake cycle, leading to insomnia and poor-quality sleep.

Strategies for the Prevention of Computer Vision Syndrome

Prevention of computer vision syndrome might seem challenging in our increasingly digital world, but it's not impossible. One effective method is the 20-20-20 rule: every 20 minutes, take a 20-second break and look at something 20 feet away. This simple strategy can help reduce eye strain. Another strategy is to make sure your workspace is set up correctly. Your computer screen should be 20-30 inches away from your eyes, and the top of the screen should be at eye level or below, so you're looking slightly downward at it.

Adjusting the lighting in your workspace can also help prevent CVS. Reduce the brightness of your screen and use curtains or blinds to control the amount of natural light. If possible, use a desk lamp that shines on your desk, not you. Try to limit the amount of glare on your screen by using a matte screen filter if needed.

Lifestyle Changes to Minimize Computer Vision Syndrome

Beyond adjusting your workspace, there are several lifestyle changes you can make to minimize computer vision syndrome. Regular exercise can improve blood circulation, which is essential for eye health. Try to incorporate more movement into your day, whether it's taking a walk during your lunch break, stretching every hour, or practicing yoga after work.

Nutrition also plays a role in eye health. Foods rich in vitamins A, C and E, as well as foods high in omega-3 fatty acids, can help protect your eyes. Make sure to stay hydrated as well. Dehydration can lead to dry eyes, exacerbating the symptoms of CVS.

Role of Regular Eye Check-ups in Preventing Computer Vision Syndrome

Regular eye check-ups play a crucial role in preventing computer vision syndrome. Comprehensive eye exams can detect early signs of CVS and other vision problems before they become more serious. Your optometrist can also provide personalized advice based on your specific needs, such as recommending special lens coatings or eyewear designed to reduce eye strain.

It's important to discuss your digital device use with your eye doctor. They can help you understand the risks and provide tips for preventing CVS. Regular eye exams are particularly important if you already wear glasses or contact lenses, as incorrect or outdated prescriptions can contribute to eye strain.

Conclusion

Computer vision syndrome is a growing issue in our digital society, but it's not inevitable. By understanding the causes and implementing strategies for prevention, we can protect our eyes and maintain our visual health. Take regular breaks, adjust your workspace, make lifestyle changes, and schedule regular eye check-ups.

For more on the causes and prevention of computer vision syndrome, visit Paradise Canyon Eye Care at our St. George, Utah, office. Call (435) 291-5093 to schedule an appointment today.

​​​​​​​

​​​​​​​

​​​​​​​