Computers, smartphones, and tablets have become essential tools for both work and entertainment. Gamers, programmers, designers, e-commerce professionals, video editors, and remote workers may spend six or seven hours—or even more than ten hours—a day looking at screens.
Dryness, soreness, blurred vision, or headaches after prolonged screen use should not always be dismissed as ordinary tiredness. These symptoms may indicate that your eyes need a break or that your screen setup and working environment need to be adjusted.
According to data published by the World Health Organization in 2026, at least 2.2 billion people worldwide have a near- or distance-vision impairment. In at least 1 billion of these cases, the impairment could have been prevented or has yet to be properly addressed. Uncorrected refractive errors remain a major cause of vision impairment among both children and adults.
So, how can gamers and people who work long hours at a computer protect their eyes more effectively?
1. Follow the 20-20-20 Rule
One of the simplest, most affordable, and easiest eye-care habits to adopt is the 20-20-20 rule, recommended by the U.S. National Eye Institute: Every 20 minutes, look at something approximately 20 feet—or about 6 meters—away for at least 20 seconds.
This gives your eyes a temporary break from continuous near focusing and allows the eye’s focusing system to relax.
How Can Gamers Follow This Rule?
Stopping a game every 20 minutes may not always be practical. Instead, eye breaks can be incorporated into natural pauses between matches or during loading periods:
- After each match, avoid starting the next one immediately. Look out of a window or at something in the distance for 20 to 30 seconds.
- Blink consciously and look away from the screen while waiting for matchmaking or during loading screens.
- After every 50 to 60 minutes of gaming, leave your chair and move around for approximately 5 to 10 minutes.
- After two or three hours of continuous gaming, take a longer screen-free break.
- Do not switch from your computer to your phone during a break, as your eyes will still be focusing at a short distance.
Looking into the distance does not mean shifting your attention to a second monitor. It means focusing on something several meters away, such as a tree outside or the distant sky.
How Can Desk Workers Follow This Rule?
People who work at a computer can use alarms or scheduled reminders to establish a consistent break routine:
- Look into the distance briefly every 20 minutes.
- Look away from the screen after completing a spreadsheet, email, design task, or other work module.
- Alternate screen-based work with tasks such as printing, filing, or organizing documents.
- Avoid spending the entire lunch break scrolling on your phone.
Effective eye care is not about closing your eyes for five minutes once in a while. It is about avoiding several uninterrupted hours of continuous near-focused work.
2. Adjust Your Screen Distance and Height
Sitting too close to a screen can increase the demand on your eyes’ focusing system. However, placing the screen too far away may cause you to lean forward, squint, or extend your neck, which can contribute to both eye strain and poor posture.
The U.S. Occupational Safety and Health Administration recommends keeping the computer monitor approximately 50 to 100 centimeters, or about 20 to 40 inches, away from the eyes.
In practical terms, the screen should be positioned at a distance where you can read comfortably while keeping your head and torso upright and your back properly supported. You should not need to lean forward, squint, or strain your eyes to see the content clearly.
Adjust your monitor according to the following principles:
- Position the monitor directly in front of your body rather than off to one side.
- Keep the top of the screen at or slightly below eye level.
- Position the center of the screen approximately 15 to 20 degrees below your natural horizontal line of sight.
- Do not place the monitor on an excessively high computer case, shelf, or storage unit.
- Increase the font size instead of leaning forward when text is too small.
OSHA recommends placing the top of the monitor at or slightly below eye level and positioning it directly in front of the user. This may help reduce visual fatigue and prevent unnatural neck and shoulder positions.
People who wear bifocal or progressive lenses may need to position the monitor slightly lower to avoid repeatedly tilting their head backward to see the screen clearly.
3. Avoid Using a Bright Screen in a Completely Dark Room
Many gamers prefer to turn off the main room lights and use only the monitor and RGB lighting. However, when the screen is significantly brighter than the surrounding environment, the eyes must continually adapt to a strong contrast between light and darkness. This can increase the likelihood of visual fatigue and headaches.
A more comfortable setup should include the following:
- Maintain soft and evenly distributed ambient lighting.
- Avoid directing lights toward the screen or directly into your eyes.
- Adjust the screen brightness so that it is reasonably consistent with the surrounding room.
- Clean the screen regularly to reduce glare caused by dust and fingerprints.
- Lower the brightness at night, but do not make the screen so dark that you need to squint.
OSHA also recommends positioning monitors perpendicular to windows and major light sources whenever possible. This can help reduce reflections and glare.
Some people prefer dark mode, but it is not automatically better for the eyes than light mode. Dark mode may feel more comfortable in a dimly lit room, while a light background may make small text easier to read in brighter environments.
The best display setting is the one that allows you to read clearly and comfortably without squinting. Visual comfort and readability are more important than choosing a mode purely for appearance.
4. Blink Consciously to Reduce Dryness
When people concentrate on demanding work or competitive games, they may blink less frequently or fail to blink fully. This allows the tear film covering the surface of the eye to evaporate more quickly, which can lead to dryness and irritation.
While working or gaming, make a conscious effort to blink normally and fully. However, avoid squeezing your eyes shut forcefully or rubbing them frequently.
OSHA notes that dry air may worsen eye dryness, particularly for people who wear contact lenses. Avoid sitting where air-conditioning, heating, or a fan blows directly toward your face.
Using a humidifier or opening a window may help improve the indoor environment when the air is particularly dry. If your eyes become uncomfortable while wearing contact lenses, switching temporarily to prescription glasses may be more appropriate.
Anyone who needs to use artificial tears or other eye drops frequently should consult a pharmacist, optometrist, or ophthalmologist. Avoid long-term self-treatment with products marketed primarily for “redness relief” or an immediate cooling sensation.
5. Do Not Rely Entirely on Blue-Light-Blocking Glasses
Blue-light-blocking glasses are often marketed as a way to reduce eye strain, protect the retina, or improve sleep. However, current high-quality evidence does not support treating them as the primary solution for discomfort caused by prolonged screen use.
A 2023 Cochrane systematic review evaluated 17 randomized controlled trials involving a total of 619 participants. The findings suggested that blue-light-filtering lenses may not provide a meaningful short-term reduction in computer-related eye strain compared with standard lenses. Their effects on sleep quality, macular health, and other visual outcomes also remain uncertain.
Rather than prioritizing expensive blue-light-blocking glasses, it is more effective to develop healthier everyday screen habits, including taking regular breaks, adjusting the monitor correctly, reducing glare, and making text easier to read.
Diet, Exercise, and Sleep Also Affect Eye Health
No single food can immediately eliminate eye strain, and eating carrots for several days will not restore lost vision.
A more reliable approach is to maintain a balanced diet that includes a variety of vegetables and fruits, especially those rich in vitamins and dietary fiber, along with fish, eggs, and other sources of high-quality protein.
The U.S. National Eye Institute recommends including dark leafy vegetables and fish rich in omega-3 fatty acids as part of a balanced diet. Regular physical activity can also help reduce the risk of conditions such as diabetes, high blood pressure, and high cholesterol, all of which may negatively affect eye health.
Consistent, adequate sleep is particularly important for gamers and people with demanding workloads. When tired, people are more likely to remain in the same position for long periods, blink less often, and ignore symptoms such as dryness, blurred vision, or difficulty focusing.
Protecting your eyes does not require avoiding screens completely. The goal is to reduce uninterrupted near work, improve your screen setup, take regular visual breaks, and respond appropriately when discomfort persists.
(This article is intended for general health education only and should not be used as a substitute for professional medical diagnosis or personalized treatment.)
