Asthenopia is characterized by blurry vision and eye strain. People who spend a lot of time looking at screens, whether it's a phone or a computer monitor, often experience this condition. Eyes becoming blurry after looking at a phone or feeling fatigue from prolonged use of digital devices are common complaints. Understanding these symptoms is crucial so you can take the right steps if you experience them.
After extended periods spent staring at digital screens, you might find that your vision becomes blurry after looking at your phone or other devices. Our eyes must work hard to converge, focus, and track the content we're reading. Over time, this process can tire out not only the physical muscles in the eyes but also the neurons that process visual information.
You eyes may start to see blurry, after using the computer or using the phone for a long time. There are usually two reasons for this.
Dry eye: If your eyes are blurry when looking at a screen, it's often due to dry eye syndrome. When we are looking at screens, our eyes blink less, and our blink rate drops. Blinking fully and frequently is a vital process that replenishes our tear film. So when we’re blinking less, our eyes are less moist, and when our eyes are less moist, and they don't have a robust tear layer, then they can see blurry. Learn more about dry eye.
Eye teaming: Another reason you might find your vision blurry after looking at a phone is a disturbance in how your eyes work together, known as binocular vision issues. Studies estimate that 25% of the population has convergence insufficiency, where our two eyes are not able to work together when focusing on an object at near, the primary complaint is blurred vision or double vision. The first symptom of a binocular vision system that is not working properly is blurry vision. So if you are having blurry vision while you're on the computer or on the phone or reading for a long time, it's a good idea to get checked out by a behavioral optometrist to find out why you're experiencing that symptom.
Asthenopia or blurry vision causes several other symptoms in addition to fatigue caused by eye strain. Some of these include:
Treatment for blurry vision varies based on its cause. For instance, if blurry vision from a computer screen is diagnosed as dry eye, your optometrist may recommend a dry eye therapy regimen. If the cause is binocular vision issues then vision therapy will be the most effective treatment.
Other tips include:
Learn more about treatment options for blurred vision.