Why do screens make your eyes feel tired?
Long periods of screen use can leave your eyes feeling tired, dry, blurry, or uncomfortable and may contribute to headaches or trouble refocusing. There isn’t always one single cause. Your prescription, focusing demands, dry eye, contact lenses, viewing habits, and other eye-health factors can all play a role. An eye exam can help figure out what’s actually contributing rather than simply blaming blue light.
People also blink less often and less completely while concentrating on a screen, which lets the tear film evaporate. Long stretches of close focus, small text, glare, and an uncomfortable posture add to the effort, and the neck and shoulders often feel it too.
Read our computer vision syndrome and digital eye strain Q&A
What helps with screen-related eye strain?
- Take distance breaks. The 20-20-20 rule is a simple reminder: every 20 minutes, look at something about 20 feet away for about 20 seconds. The habit matters more than the exact numbers.
- Blink fully and more often, especially during long screen sessions.
- Make text bigger instead of leaning in. Increase text size or display scaling so you can work at a comfortable distance.
- Reduce glare. Position the screen to avoid reflections from windows and overhead lights, and keep its brightness comfortable relative to the room.
- Adjust your workstation. Many people are more comfortable with the main monitor slightly below eye level. Keep fans and vents from blowing toward your eyes.
- Move. Standing up, stretching, or briefly changing tasks helps your neck and shoulders, not just your eyes.
More tips for minimizing digital eye strain
Is your prescription right for screen work?
A prescription that works well for driving may not be ideal for hours of computer work, particularly once presbyopia, the age-related loss of near focus, begins. An outdated prescription, uncorrected astigmatism, or progressive lenses that don’t match how you use your screen can also add visual effort.
That doesn’t mean every screen user needs special computer glasses. For some people, a prescription designed for their computer or desk setup helps. The right choice depends on your prescription, age, symptoms, working distance, and the tasks you do.
Do you need blue-light glasses?
Not for eye safety. Current evidence does not show that ordinary computer and phone screens damage the eyes through blue light, and blue light is not considered the main cause of digital eye strain. A 2023 Cochrane review found that blue-light-filtering lenses may provide little or no short-term benefit for computer-related eye strain compared with ordinary lenses.
Some people still prefer a particular lens coating or tint for comfort or appearance, and wearing one is generally fine. Blue-light-filtering lens options are available. Screen light in the evening can also affect sleep timing, but that is a different issue from eye strain.
Can you wear blue-light glasses all the time?
When should you have your eyes checked?
If screen-related symptoms keep happening, interfere with work or school, or don’t improve with simple changes such as taking breaks, an eye exam is a good next step. We can check whether your prescription, dry eye, contact lenses, focusing ability, or another eye-health issue may be contributing and discuss practical ways to make screen time more comfortable.
If your contact lenses feel dry by the end of a screen-heavy day, we can check whether lens material, fit, wearing schedule, or the surface of the eye is part of the problem. Learn more about dry eye care, contact lens exams and fittings, and comprehensive eye exams.
When is it more than eye strain?
Sudden vision loss, severe eye pain, marked redness, significant discharge, or another abrupt change in vision should not be assumed to be ordinary digital eye strain. See our urgent and emergency eye guidance.