Medically Reviewed by: Dr. Oday Alsheikh, M.D.


There’s no denying that it feels like we live in front of our computers, tablets, phones, and televisions. Every day, we spend hours staring at screens—at home, on the go, and at work. While technology keeps us connected and productive, prolonged screen time can lead to digital eye strain. Symptoms include dry eyes, headaches, blurred vision, and neck pain. At TLC San Antonio, we want to help you protect your eyes and prevent discomfort from excessive screen use.


What Causes Digital Eye Strain?

Digital eye strain, also called computer vision syndrome, occurs when the eyes work harder to focus on screens for long periods. Several factors contribute to this condition, including:

  • Reduced blinking: People blink less when using screens, leading to dryness and irritation.
  • Poor lighting: Glare and blue light from screens can strain the eyes.
  • Improper screen distance: Sitting too close or too far from a screen can cause discomfort.
  • Extended screen use: Staring at a screen for hours without taking a break tires the eye muscles.

How to Prevent Digital Eye Strain

1. Follow the 20-20-20 Rule

To reduce strain, follow the 20-20-20 rule: Every 20 minutes, look at something 20 feet away for 20 seconds. This simple habit helps relax your eye muscles and prevents fatigue.

2. Adjust Screen Settings

Optimize your screen to reduce strain:

  • Increase text size for easier reading.
  • Adjust brightness to match your surroundings.
  • Use blue light filters, especially in the evening.

3. Blink More Often

Since screen use reduces blinking, make a conscious effort to blink frequently. This keeps your eyes moist and reduces dryness. If necessary, use artificial tears to prevent irritation.

4. Maintain Proper Screen Distance

Position your screen about 25 inches (an arm’s length) from your eyes and adjust the height so that the top of the screen is at or just below eye level. This reduces strain on both your eyes and neck.

5. Reduce Glare and Improve Lighting

Glare from screens and overhead lights can make your eyes work harder. Reduce glare by:

  • Using an anti-glare screen filter.
  • Adjusting your room lighting to minimize contrast.
  • Positioning your screen to avoid reflections from windows or lights.

6. Take Regular Breaks

Give your eyes a break by stepping away from your screen every 1-2 hours. Stand up, stretch, and focus on distant objects to relax your eye muscles.


When to See an Eye Doctor

If you experience persistent headaches, blurry vision, or dry eyes despite taking precautions, it may be time for an eye exam. An optometrist or ophthalmologist can assess your vision and recommend treatments such as prescription glasses with blue light protection.

Protect Your Eyes with TLC San Antonio

At TLC San Antonio, we provide experienced eye care to help you manage digital eye strain and maintain healthy vision. If screen time is affecting your eyes, call us at (210) 348-0265 to schedule an eye exam today.