If your eyes feel dry, gritty, tired or irritated after a long day on your computer or phone, you’re not imagining it. Screens don’t necessarily cause dry eye, but prolonged screen use can make symptoms worse. One of the biggest reasons is surprisingly simple: we blink less when we’re concentrating on a screen.
Why Does Screen Time Make Eyes Feel Dry?
Blinking helps spread a thin layer of tears across the surface of your eyes. When you’re focused on a screen, you tend to blink less often and some blinks may be incomplete. This allows your tears to evaporate more quickly and can make the tear film less stable.
The result can be:
- Dryness or a gritty feeling
- Burning or stinging
- Red or irritated eyes
- Watery eyes
- Eye fatigue
- Fluctuating or blurred vision
- Contact lens discomfort
If you already have dry eye or meibomian gland dysfunction, long periods of screen use may make your symptoms even more noticeable.
Why Are My Eyes Worse at the End of the Day?
You may feel perfectly comfortable in the morning but notice increasing dryness or irritation after several hours of screen use. Your environment can contribute too. Heating, air conditioning, fans and low humidity can increase tear evaporation. This can be particularly noticeable in Alberta’s dry climate.
How Can I Make Screen Time More Comfortable?
You don’t need to give up your screens. A few simple changes can help:
- Take regular breaks. Try the 20-20-20 rule: every 20 minutes, look about 20 feet away for at least 20 seconds.
- Blink fully. When you’re concentrating, consciously take a few slow, complete blinks.
- Adjust your screen. Positioning your monitor slightly below eye level can reduce the amount of your eye exposed to the air.
- Watch your environment. Avoid having fans or vents blow directly toward your face and consider using a humidifier when indoor air is particularly dry.
Is Screen Time the Real Problem?
Sometimes, screen use is simply the trigger that makes you notice an underlying problem. Dry eye can be caused by several factors, including meibomian gland dysfunction, tear-film instability, eyelid inflammation and reduced tear production. Simply “blinking more” may not address the underlying cause.
If your eyes are consistently dry, irritated or uncomfortable, a comprehensive dry-eye assessment can help determine what’s really contributing to your symptoms.
Long periods of focused screen use can reduce blinking, increase tear evaporation and worsen dry-eye symptoms. Taking breaks, blinking fully and optimizing your environment can help, but persistent symptoms shouldn’t simply be attributed to screen time.
Experiencing dry, tired or irritated eyes?
At Focal Pointe Eyecare, we can assess your eyes and help identify what’s contributing to your symptoms, with recommendations tailored to your eyes and lifestyle.
Book a dry-eye assessment at Focal Pointe Eyecare to find out what’s really behind your symptoms.