If you find yourself looking at a screen for large portions of your day, you could be at risk of something called Computer Vision Syndrome (CVS), also known as digital eye strain. If you’re someone that relies on the computer for work, you’re likely way over the threshold of recommended screen time, putting your eyes at even more of a risk.
Luckily, there are things you can do to prevent and relieve CVS before the situation gets worse. But first, let’s explore what CVS actually is, the symptoms, causes, and more.
What is Computer Vision Syndrome?
CVS or digital eye strain is used to describe a group of different but related eye and vision-related issues that stem from extended use of screens, whether it be the computer, tablet, phone or TV. Your eye doctor will use the term CVS to describe anyone that is suffering from digital eye strain and other symptoms due to their screen time.
How is Computer Vision Syndrome Caused?
CVS and digital eye strain all comes down to the screens we use every day. The screens are the problem. But why? Our phones and computers are more difficult for our eyes to see, focus on, and read information off of. As a result, when we focus on these screens for too long, are eyes become fatigued and eventually strained to the point of discomfort. But it’s not just the screen that causes CVS – your seating posture, viewing distance, and lighting can also play a part.
You may be wondering why screens are such a big deal when people have been newspapers and books for hundreds of years without a problem. It’s true that the type can be quite small when written on paper, but these traditional mediums are written with black text on a white background. In addition, there is no glare of reflection. Unless you’re reading from too far away or in low light, you’re far less likely to develop CVS or eye strain from books or other printed material.
People with untreated or preexisting eye conditions will develop CVS and digital eye strain far more easily. These uncorrected issues increase the load of work on the eyes, which makes reading screens more difficult and the eyes more susceptible to CVS-related issues.
Symptoms of Computer Vision Syndrome
Also known as digital eye strain, the term CVS offers some insight into what the symptoms might be, but there’s more to it than that. Eye strain and blurry vision are certainly a couple of the core symptoms that arise from CVS, but that’s not all.
Many people use prescription eyewear throughout the day, including when they’re at the computer. Unknowingly, these people may be viewing the screen at odd angles because their glasses aren’t necessarily designed for the screen. To see a little better, people will then bend and contort their heads, necks, and bodies. As a result, muscle spasms, neck and shoulder pain are some of the main symptoms of CVS and digital eye strain.
Diagnosing Computer Vision Syndrome
CVS and digital eye strain can be easily diagnosed by your optometrist. When you attend your comprehensive eye exam, your optometrist will be able to detect any eye issues, including CVS, by using advanced diagnostic technology. By testing how your eyes focus, move, and work with each other, any problems will become evident.
Along with diagnostics tech and imaging, your optometrist will review your patient history and medications, and ask you about any discomfort, pain or vision issues you’ve been experiencing. This will help your optometrist build a complete picture of your eye health and determine any issues.
Preventing & Treating Computer Vision Syndrome
There is lots you can do to treat and prevent CVS and digital eye strain issues. Your work environment, office setup, and computer viewing techniques can all play a part.
Regular Breaks
One of the best ways to prevent these issues is to take regular breaks from focusing on your computer, phone, or other device with a screen. A general rule of thumb is to focus on something farther away for about 20 seconds every 20 minutes. Take a long look outside, or if you’re at the office, take a mini coffee break or consult a coworker about something.
Lighting, Blue Light & Glare
Lighting, blue light and glare are three key factors within your control that should be managed. Working or reading in the dark is never a good idea because our eyes have to work harder, so always make sure your workspace is well-lit. Next, check the brightness settings on your screen to make sure they’re minimized – especially at night. In addition, visit your optometrist for some blue-light blocking eyewear or attachments. Finally, glare from other light sources can make things difficult on our eyes. If you can, use shades and blinds to block out sunlight, while regularly wiping your screen to boost the clarity.
Screen Viewing Position
The final opportunity for improvement is how you actually view your computer or screen. If you’re using a screen for work or are spending long hours of each day in front of one, it’s important to make sure you’re comfortable. And that doesn’t mean slumped on the couch – the most comfortable position for your entire body is one in which your back is straight, your eyes are looking straight ahead, your hands are extended on a 90-degree angle, and your feet are supported.
If you’re worried about computer vision syndrome or digital eye strain from your extended screen use, or if you’re already noticing symptoms, call Inner Harbour Optometry and book a comprehensive eye exam. Our optometrists will be able to diagnose CVS or any other issues and get you on track towards pain-free living, clear vision and improved eye health. Contact us today or visit one of our two downtown Victoria locations.