Why Do My Eyes Get So Tired from Using the Computer? It's Not Blue Light's Fault

Why Do My Eyes Get So Tired from Using the Computer? It's Not Blue Light's Fault

Many people blame blue light for eye strain, but that's not entirely accurate. The real culprits are how long you stare at a screen, how often you blink, and the lighting in your workspace.

As we age, spending hours in front of a computer screen can take an increasing toll on our eyes. By the evening, they may feel dry, irritated, or even painful, sometimes leading to headaches. While there's a common belief that blue light from screens causes eye fatigue, recent studies suggest otherwise.

Blue light in excessive amounts can negatively affect our health. It disrupts circadian rhythms, makes it harder to fall asleep, and accelerates skin aging. However, its impact on vision isn't as significant or harmful as once thought. Blue light is a normal part of the visible spectrum, and our bodies are already adapted to it. So, what's the real cause of computer related eye fatigue?

In recent years, researchers have coined the term computer vision syndrome to describe these issues. First proposed in 1998 by the American Academy of Ophthalmology, it's not classified as a disease but can still be highly uncomfortable. Severe cases may lead to chronic headaches or even persistent nearsightedness.

The main cause? Prolonged focus on small details and maintaining a fixed distance for extended periods. This strains the eye muscles, which remain tense for hours while working on a computer.

Eye strain varies between individuals, but the more time you spend in front of a screen, the greater your risk of developing this syndrome. Working without breaks or in poorly lit environments further increases fatigue.

Another significant factor is reduced blinking while concentrating on a screen. This leads to decreased tear production, causing dryness and irritation in your eyes.

Tips to Reduce Eye Strain

  • Adjust Screen Position: Place your screen 24–28 inches (60–70 cm) from your eyes, with its center slightly below eye level. This helps reduce strain on your neck and eyes.
  • Take Breaks: Follow the 20-20-20 rule: every 20 minutes, look at something at least 20 feet (6 meters) away for 20 seconds. This relaxes the eye muscles.
  • Blink More: Make a conscious effort to blink frequently to keep your eyes hydrated.
  • Optimize Lighting: Ensure your workspace is well-lit to reduce glare and shadows.