Spending long hours in front of a computer, tablet, or phone has become the norm for many of us. But at the end of the day, the same observation often comes back: eyes that itch, burn, feel tight, or seem dry. Why does this sensation occur so frequently, and what can we do about it?
1. Reduced Blinking: The Number One Cause
When we’re focused on a screen, our concentration increases… and our blinking rate drops by about 50%. Each blink spreads the tear film evenly across the surface of the eye to keep it hydrated and comfortable. The fewer blinks, the faster the tears evaporate, leading to:
- Dry eyes
- Itching
- A gritty or sandy sensation
2. Blue Light Increases Visual Fatigue
Blue light emitted by screens does not cause permanent damage, but it can contribute to eye fatigue. It creates a contrast that is more demanding for the eyes and forces them to stay in a constant state of alertness, which can intensify itching or tightness.
3. Poor Work Ergonomics
The positioning of your screen directly affects your eye comfort. A screen placed too high, too close, or in a poorly lit environment can force your eyes to adapt continuously.
Typical signs include:
- Dry eyes
- Blurry vision at the end of the day
- Headaches
- Neck or shoulder pain
Ideally, the top of the screen should be slightly below eye level and positioned about 50 to 70 cm away.
4. Lack of Humidity in the Environment
Heating in winter, air conditioning in summer, or even a fan blowing toward your face can dry out the surrounding air. As a result, the tear film evaporates more quickly, leaving eyes irritated and sensitive.
5. An Inadequate Vision Correction
Wearing glasses or contact lenses that no longer match your needs can increase visual strain. A prescription that is too weak or not adapted to screen use may cause:
- Itching
- Fatigue
- Blurred vision
- Difficulty maintaining focus
This is why glasses designed for digital work—or simply updating your prescription—can make a significant difference.
6. Underlying Dry Eye Condition
For some people, the glands that produce tears or their components do not function optimally.
In this case, time spent on screens only aggravates an existing issue.
Typical symptoms:
- Frequent itching
- Burning sensations
- Red eyes
- Fluctuating vision
A comprehensive eye exam can help diagnose the problem and offer tailored solutions.
How to Relieve Itchy Eyes?
Fortunately, a few simple habits can reduce discomfort:
The 20-20-20 Rule
Every 20 minutes, look at something 20 feet (6 meters) away for 20 seconds.
This relaxes the eye muscles and encourages blinking.
Blink Intentionally
Take a few seconds to perform 5 to 10 slow, complete blinks to instantly rehydrate the eye.
Adjust Your Environment
- Avoid air blowing toward your face
- Add a humidifier
- Lower your screen slightly
- Adjust brightness to avoid harsh contrasts
Use Artificial Tears
They help stabilize the tear film and reduce itching sensations.
See an Eye Care Professional
An eye exam can confirm whether dryness, an inadequate prescription, or another issue is contributing to your discomfort.
Eyes that itch after a day in front of screens are not inevitable. The sensation often stems from reduced blinking, digital eye strain, and environmental factors. With simple habits, ergonomic adjustments, and proper vision correction, you can noticeably improve your comfort.
If symptoms persist, don’t hesitate to consult an eye care professional—your eyes work hard for you… they deserve to be cared for!
