Updated September 13, 2026 By Justin Bazan

Reviewed for accuracy by Justin Bazan, OD on September 14, 2026.

Digital eye strain is a group of symptoms associated with prolonged computer, phone, tablet, or other near-screen use. Common symptoms include tired or sore eyes, dryness, fluctuating blur, headaches, difficulty refocusing, and neck or shoulder discomfort.

Screen use itself is not the only possible cause. Prescription needs, dry eye, contact lenses, focusing demands, posture, glare, lighting, and viewing habits can all contribute.

Use the 20-20-20 Rule as a Simple Break Reminder

Every 20 minutes, look at something about 20 feet away for about 20 seconds. The exact numbers are less important than the habit: interrupt long periods of continuous near focus and give your eyes regular distance breaks.

Standing up, stretching, or briefly changing tasks can also help the neck and shoulders rather than treating digital eye strain as an eye-only problem.

Remember to Blink

People tend to blink less completely and less often while concentrating on a screen. That can make the tear film less stable and contribute to burning, grittiness, fluctuating vision, or contact-lens discomfort.

Consciously blinking more often, especially during long screen sessions, can help. If dryness remains frequent, an eye exam can help determine whether dry eye, eyelid inflammation, contact-lens issues, or another ocular-surface problem is contributing.

Make Text Easier to See Instead of Leaning In

If you are constantly moving closer to the screen, increase text size or interface scaling rather than forcing yourself to work at an uncomfortable distance. A larger monitor can also be useful when the work requires many windows or small details.

A comfortable working distance is more useful than following one rigid measurement for every person and every device.

Reduce Glare and Improve the Workstation

Position the screen so reflections from windows or overhead lights are minimized. Adjust brightness and contrast so the display is comfortable relative to the room rather than dramatically brighter or darker.

Many people are more comfortable with the main monitor slightly below straight-ahead eye level. Good chair and desk positioning can reduce the neck and shoulder strain that often accompanies long periods of screen use.

Make Sure Your Prescription Fits the Task

A prescription that works well for distance driving may not be ideal for prolonged intermediate computer work, particularly for people with presbyopia. An outdated prescription, uncorrected astigmatism, or poorly matched progressive-lens position can also add unnecessary visual effort.

That does not mean every screen user needs special “computer glasses.” The useful correction depends on the person's prescription, age, symptoms, working distance, and tasks.

What About Blue-Light Glasses?

Ordinary computer and phone screens have not been shown to expose the eyes to the kind of blue-light dose that requires special eyewear to protect the retina. Blue-light-filtering glasses are therefore not necessary as an eye-safety treatment for routine screen use.

Some people may still prefer a particular tint or coating for comfort. Screen light in the evening can also affect sleep timing, but that is a different issue from retinal damage or digital eye strain itself.

When Should You Have Your Eyes Checked?

Consider an eye exam if screen-related blur, headaches, dryness, discomfort, or focusing difficulty are persistent, worsening, or interfering with work or daily activities. An exam can help identify whether the main issue is prescription-related, dry-eye related, contact-lens related, or something else.

Sudden vision loss, severe eye pain, marked redness, or another abrupt major visual change should not be assumed to be ordinary digital eye strain.

Learn more about digital eye strain, dry-eye care, or comprehensive eye exams at Park Slope Eye.

Originally published April 22, 2019. Substantially updated September 13, 2026.

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