Whether for work, school, or entertainment, screens have become an essential part of everyday life. However, spending hours in front of a computer, tablet, or smartphone can affect eye comfort. One of the main reasons is that we naturally blink less while focusing on digital screens.
Why does this happen, and what can you do to protect your eyes?
Blinking: A Vital Function
Blinking is an automatic reflex that most of us never think about. On average, we blink 15 to 20 times per minute.
Each blink helps:
- Spread tears evenly across the surface of the eye;
- Remove dust and tiny particles;
- Keep the cornea well lubricated;
- Maintain clear, comfortable vision.
It's a simple but essential process for healthy eyes.
Why Do Screens Reduce Blinking?
When we're deeply focused on a visual task, our brains prioritize concentration over blinking. Reading, typing, gaming, or watching videos requires sustained visual attention, which naturally reduces our blink rate.
Research suggests that people may blink up to 50% less while using digital devices.
As a result, tears evaporate more quickly, leaving the eyes feeling dry and uncomfortable.
Common Symptoms
Blinking less frequently may cause:
- Dry eyes;
- Eye fatigue;
- Burning or stinging sensations;
- Intermittent blurry vision;
- Red eyes;
- Increased sensitivity to light.
These symptoms are commonly associated with digital eye strain.
How Can You Reduce Digital Eye Strain?
A few simple habits can make a big difference.
Follow the 20-20-20 Rule.
Every 20 minutes, look at something about 20 feet (6 metres) away for at least 20 seconds.
Make a conscious effort to blink.
Several full blinks help restore the tear film.
Position your screen properly.
Keep it about an arm's length away and slightly below eye level.
Use lubricating eye drops if needed.
Artificial tears recommended by your eye care professional can help relieve dryness.
Take regular breaks.
Standing up and looking into the distance allows both your eyes and your body to relax.
Children Are Affected Too
Children are spending more time than ever using digital devices for both learning and recreation. Like adults, they tend to blink less while using screens, which can contribute to dry eyes and eye fatigue.
Encouraging outdoor activities, regular breaks, and balanced screen time helps support healthy visual habits from an early age.
When Should You See an Eye Care Professional?
If your eyes continue to feel dry, tired, or irritated despite following good screen habits—or if blurry vision becomes frequent—it's time to schedule an eye exam. Your eye care professional can determine whether dry eye, an uncorrected vision problem, or another condition may be contributing to your symptoms.
Blink More, See More Comfortably
Blinking may seem insignificant, but it plays a vital role in maintaining healthy, comfortable eyes. As screen use continues to increase, becoming more aware of this natural reflex can make a real difference.
At IRIS, our eye care professionals are here to help you find personalized solutions so you can enjoy your digital devices while keeping your eyes healthy and comfortable every day.
