Thursday, June 13, 2024

What Causes Computer Eye Strain: A Comprehensive Guide

In today’s digital age, many of us spend a significant amount of time in front of computer screens for work, entertainment, and communication. However, this prolonged screen time often leads to a common issue known as computer eye strain. In this blog post, we’ll delve into the causes of computer eye strain and explore effective ways to alleviate its symptoms.

What Causes Computer Eye Strain:

Screen Brightness and Glare:

Cause: High screen brightness and glare contribute to eye strain by forcing your eyes to work harder to maintain focus.

Solution: Adjust your screen brightness to match the ambient lighting in the room. Consider using an anti-glare screen or positioning your monitor to reduce reflections.

Blue Light Exposure:

Cause: Extended exposure to the blue light emitted by screens can disrupt your circadian rhythm and contribute to eye strain.

Solution: Use blue light filters or computer glasses with anti-reflective coatings to reduce blue light exposure. Consider taking regular breaks to give your eyes a rest.

Poor Ergonomics:

Cause: Incorrect posture and poor ergonomics can lead to neck, shoulder, and eye discomfort.

Solution: Ensure your computer setup promotes good posture. Adjust the height and angle of your monitor to reduce strain on your neck and eyes. Use an ergonomic chair and position your keyboard and mouse at a comfortable level.

Inadequate Lighting:

Cause: Insufficient or harsh lighting in the room can strain your eyes as they try to adjust between the bright screen and dim surroundings.

Solution: Use ambient lighting that reduces contrast between the screen and the surrounding area. Avoid glare from direct overhead lighting and position lighting sources behind or beside you.

Uncorrected Vision Problems:

Cause: Existing vision issues, such as uncorrected myopia or astigmatism, can exacerbate eye strain when using a computer.

Solution: Regular eye exams are crucial. Wear corrective lenses if prescribed, and discuss with your eye care professional about specialised computer glasses.

Frequent Screen Time without Breaks:

Cause: Staring at a screen for long periods without breaks can lead to eye fatigue.

Solution: Follow the 20-20-20 rule—every 20 minutes, look at something 20 feet away for at least 20 seconds. Take regular breaks to stretch and blink to reduce eye dryness.

Dry Eyes:

Cause: Reduced blinking while focusing on a screen can lead to dry eyes.

Solution: Use artificial tears to keep your eyes moist. Blink consciously and make an effort to blink more frequently.

Recovery From Eye Strain: 

Recovering from eye strain involves adopting various strategies to alleviate discomfort, promote eye health, and prevent future occurrences. Here are detailed steps you can take to facilitate recovery from eye strain:

Take Breaks:

Follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for at least 20 seconds. This helps reduce eye fatigue associated with prolonged screen use.

Blink Regularly:

Consciously blink more often, as extended screen time often leads to reduced blinking, contributing to dry eyes.

Adjust Lighting:

Ensure proper lighting in the room. Position your screen to avoid glare and use ambient lighting to reduce contrast between the screen and the surrounding environment.

Screen Settings:

Adjust the brightness, contrast, and font size of your screen to create a more comfortable viewing experience. Consider using blue light filters or night mode settings, especially in the evening.

Eye Exercises:

Practice eye exercises to improve focus and reduce strain. Simple exercises include rolling your eyes, focusing on near and far objects, and palming (covering your closed eyes with your palms) for a few minutes.

Warm Compress:

Apply a warm compress to your closed eyes. This can help relax the eye muscles and alleviate dryness.

Artificial Tears:

Use lubricating eye drops or artificial tears to relieve dry eyes. Consult with an eye care professional to choose the right product for your needs.


Drink an adequate amount of water to stay hydrated, as hydration is essential for maintaining moisture in the eyes.

Adjust Workstation Ergonomics:

Ensure your workstation is ergonomically sound. Position the monitor at eye level, use an ergonomic chair, and arrange the keyboard and mouse to reduce strain on your neck, shoulders, and eyes.

Corrective Lenses:

If you have prescription glasses or contact lenses, ensure they are up-to-date and wear them as prescribed by your eye care professional.

Reduce Screen Time:

Limit overall screen time, especially during leisure hours. Take breaks from digital devices and engage in activities that do not involve screen use.

Consult an Eye Care Professional:

If symptoms persist or worsen, seek advice from an eye care professional. They can conduct a comprehensive eye exam to identify underlying issues and provide tailored recommendations.

Remember that recovery from eye strain is a gradual process, and consistency in adopting these practices is key. Additionally, these measures not only aid in recovery but also serve as preventive strategies to minimise the risk of future occurrences of eye strain. If in doubt or if symptoms persist, it is crucial to consult with an eye care professional for personalised guidance.


Computer eye strain is a prevalent issue in our digital-centric lives, but with conscious adjustments to our environment and habits, it can be effectively managed. By addressing screen brightness, blue light exposure, ergonomics, lighting, vision problems, screen breaks, and dry eyes, you can create a more eye-friendly computing experience and reduce the risk of long-term eye discomfort.

Jassica Handley
Jassica Handley
Jessica Handley is a medical writer freelancer who has written thousands of articles on varying topics, and she looks forward to seeing how can help human beings for every purpose. The health and medical field can be difficult to navigate without the proper experience, which is why her training and Master of Engineering degree in Biomedical Engineering sets her apart from other writers.


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