If your eyes feel dry, tired, or irritated after a day of working on a computer or scrolling on your phone, you’re not alone. As screen use continues to rise—whether for work, school, or entertainment—more people than ever are asking the same question:
Is screen time actually causing dry eyes, or is it just a myth?
The short answer: It’s very real.
However, understanding why it happens is the key to managing the symptoms effectively.
Here we will break down the science, the myths, and what you can do to help protect your eyes and reduce symptoms in a screen-heavy world.
What Is Dry Eye?
Dry eye is a disease that occurs when the eyes don’t produce enough tears or when the tears evaporate too quickly. Both of these types of dry eye cause loss of homeostasis of the tear film. Natural tears are made up of mucous, water (aqueous) and oil (lipid). If one (or more) of these components are altered, the vicious circle of dryness is initiated which results in inflammation, blurred vision and discomfort (symptoms). While dry eye has multiple causes (age, hormonal changes, medications, autoimmune disease), screen-related factors have emerged as one of the most common triggers today.
Myth or Reality: Does Screen Time Cause Dry Eye?
Reality: Screen time is a well-known contributor to dry eye symptoms.
Multiple studies confirm that prolonged screen use—computers, smartphones, tablets, and even TVs—can significantly worsen dry eye or trigger symptoms in people who never had them before. This condition is actually referred to as:
“Digital Eye Strain,” or “Computer Vision Syndrome."
Why Screen Time Contributes to Dry Eye: The Science Behind It
1. Blinking Rate Decreases
When focusing on any digital screen, our blink rate naturally decreases—from about 15–22 blinks per minute in relaxed, non-screen settings to as low as 4-7 blinks per minute while using a computer (1). Fewer blinks mean:
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Tears evaporate faster
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Meibomian gland oil doesn’t spread properly
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Tear film becomes unstable and degrades
Each time you blink your eyes, your tear film spreads across your eye's surface. This is critical for clear vision. If you don't have enough tear volume or your tears evaporate too quickly, clear, stable vision will be interrupted as the tear film degrades. This is one of the main reasons that screens can worsen dry eye.
2. Blinks Become “Incomplete”
Even when we do blink, screens cause many of those blinks to be partial blinks (2), meaning the eyelids don’t fully close. It is critical that the eyelids come together with each blink as this action is what physically picks up meibomian gland oils to spread them into the tear film. Incomplete blinks mean:
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Poor tear film distribution
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More tear evaporation
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Increased exposure of the eye's surface
Patients with meibomian gland dysfunction (MGD) are especially sensitive to this.
3. Improved Focus, Worsened Moisture
Staring at a screen requires sustained visual concentration. We have already established that blinking rate decreases while using screens. It turns out that not only does it decrease while using a screen, it decreases even more when you are completing an active, engaging task or with tasks that require lots of effort and/or concentration compared to passive tasks (3). So, the more you concentrate, the worse your eyes can feel.
Common Symptoms of Screen-Related Dry Eye
If screen time is triggering your dry eye, symptoms usually show up during or after device use. The most common symptoms include:
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Eyes that feel tired or heavy
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Blurry vision that improves after blinking more
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Dry, gritty, or burning feeling
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Increased tearing (reflex tearing from dryness)
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Trouble keeping eyes open
If these symptoms worsen throughout the day, screens are can definitely be playing a role.
Are Screens the Cause of Dry Eye — or Just a Trigger?
For many people, screen time doesn’t “cause” dry eye on its own—it simply reveals or worsens other underlying factors, such as:
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Meibomian gland dysfunction - many people already have this condition but might not have the symptoms (yet)
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Environmental related dryness (air conditioners, heaters, fans, dry environments or areas with low humidity)
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Allergies
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Contact lens related discomfort
Think of screen use as the spark that lights up these pre-existing issues. The effect that screen use has on our blink dynamics can cause some patients who were previously asymptomatic to suddenly develop symptoms and discomfort.
How to Minimize Dry Eye Symptoms During Screen Use
The good news: healthy visual habits can help to reduce these symptoms. Here are some tips to utilize while on any screen:
1. Follow the 20/20/20 Rule
Symptoms increase when we stare and don't blink properly. Try to take frequent, short breaks from your screen: Every 20 minutes, look 20 feet away for 20 seconds.
This resets your blink pattern and reduces staring (4). Setting a timer for this can help to remind you when you need a quick refocusing break. Reducing overall screen time on computers and other devices if possible is also advised (where possible); many devices and apps have their own screen time monitoring technologies to help with this.
2. Practice Blink exercises and full blinks
It is also helpful now and then to fully close your eyes for a few seconds to eplenish the oily layer of your tear film.
3. Use Artificial Tears
Just using one or two tear drops per day can help to soothe the eye and stabilize your vision if you are a heavy screen user.
4. Adjust Your Environment
Increasing humidity in the air, keeping screens slightly below eye level (reduces exposed ocular surface area) and avoiding having air vents blowing toward your face/eyes can help significantly.
5. Warm Compresses for Meibomian Glands
Using a warm eye mask 10 minutes nightly can improve tear film quality significantly. This is another highly recommended management strategy for MGD.
6. Speak With Your Practitioner if Symptoms Persist
If screen-related dry eye becomes chronic, you might need to have a discussion with your optometrist or eye care practitioner about other more advanced treatment options (and to make sure there is nothing else going on that could be worsening your symptoms).
Myth or Reality: Do Blue Light Glasses Fix Dry Eye?
❌ Myth — They do not treat dry eye.
Blue light glasses can reduce glare and visual strain, but they do not prevent dryness or improve tear production. To date, there is very limited evidence that blue light glasses help with ocular health at all. They can be helpful for comfort, but absolutely not a dry eye treatment.
So… Is Screen Time to Blame for Dry Eyes?
✔️ Sort of — It’s absolutely a real contributor.
While screen time might not be the sole cause of dry eye, it is one of the strongest and most common triggers in modern life. Reduced blinking, increased tear evaporation, and digital concentration all play a role.
The key is managing screen use with healthy visual habits and supporting tear film and ocular health.
Bottom Line
Screen time and dry eyes are very closely linked. With more people spending hours on digital devices each day, screen-related dry eye is becoming increasingly common—even among younger adults and teens.
Fortunately, simple lifestyle adjustments, proper blinking habits, and targeted dry eye treatments can make a significant difference. Always inquire with your eye care practitioner if things don't seem to be improving as expected with these suggestions.
References:
- Prescott, C. R. (2021). Increased screen time and dry eye: another complication of COVID-19. Eye & contact lens, 47(8), 433.
- Al-Mohtaseb, Z., Schachter, S., Shen Lee, B., Garlich, J., & Trattler, W. (2021). The relationship between dry eye disease and digital screen use. Clinical Ophthalmology, 3811-3820.
- Muntz, A., Turnbull, P. R., Kim, A. D., Gokul, A., Wong, D., Tsay, T. S. W., ... & Craig, J. P. (2022). Extended screen time and dry eye in youth. Contact Lens and Anterior Eye, 45(5), 101541.
- Kaur, K., Gurnani, B., Nayak, S., Deori, N., Kaur, S., Jethani, J., ... & Mishra, D. (2022). Digital eye strain-a comprehensive review. Ophthalmology and therapy, 11(5), 1655-1680.
Contributors:
Sarah Farrag, OD
Dr. Sarah Farrag is originally from Halifax, Nova Scotia, and is happy to be practicing optometry in her hometown. She graduated with honors from the University of Waterloo Doctor of Optometry program in June 2015. In addition to routine optometric care, Dr. Farrag also facilitates an advanced dry eye clinic offering specialty consultation and treatment for severe dry eye.
