Blue Light vs. Bright Light: What Actually Causes Digital Eye Strain (2025-12-19-2000)

The Hidden Culprit Behind Digital Eye Strain

Are you tired of feeling fatigued after a long day spent staring at screens? Do you experience headaches, dry eyes, or blurred vision after hours of scrolling through your phone or computer? You’re not alone. The increasing prevalence of digital eye strain has become a growing concern for many Canadians, including those living in Okotoks and Alberta.

In this article, we’ll delve into the differences between blue light and bright light and explore what actually causes digital eye strain. We’ll also provide practical tips to help you alleviate this common issue and recommend expert services available at Fantastic Glasses in Okotoks.

What is Digital Eye Strain?

Digital eye strain, also known as computer vision syndrome (CVS), occurs when prolonged use of digital devices leads to physical discomfort, visual symptoms, and decreased productivity. It’s estimated that 60-90% of people who work on computers experience some level of digital eye strain (1).

Blue Light vs. Bright Light: What’s the Difference?

While many people assume that bright light is the primary cause of digital eye strain, research suggests that blue light may be a more significant contributor. Blue light, which is a high-energy visible (HEV) light with a wavelength of 400-450 nanometers, is emitted by digital devices, including smartphones, tablets, and computers.

Studies have shown that exposure to blue light can lead to increased eye fatigue, headaches, and blurred vision (2). This is because our eyes are not designed to focus on the high-energy blue light emitted by these devices for extended periods. In contrast, bright light, or visible light with a longer wavelength, does not seem to cause the same level of digital eye strain.

The Impact of Blue Light on Eye Health

Prolonged exposure to blue light has been linked to several eye health issues, including:

* Macular degeneration: A leading cause of vision loss in older adults

* Cataracts: A clouding of the lens in the eye that can impair vision

* Digital eye strain: As mentioned earlier, a common issue affecting millions of Canadians

Practical Tips for Reducing Digital Eye Strain

Fortunately, there are several steps you can take to reduce your risk of digital eye strain:

1. Follow the 20-20-20 rule: Every 20 minutes, look away from your screen and focus on something 20 feet away for 20 seconds.

2. Adjust your display settings: Lower the brightness and contrast of your screen, and adjust the color temperature to reduce blue light emission.

3. Take regular breaks: Take a 10-15 minute break every hour to stretch, move around, and rest your eyes.

Expert Eye Care in Okotoks

At Fantastic Glasses in Okotoks, our team of optometrists is dedicated to providing expert eye care and eyewear services to the local community. Our state-of-the-art facility offers a wide range of services, including:

* Comprehensive eye exams: Thorough examinations to diagnose and treat various eye conditions

* prescription glasses and <a href="https://fantasticglasses.ca/contact-lenses/” title=”contact lenses”>contact lenses: Customized corrective eyewear to meet your unique needs

* Frame selection: A vast collection of stylish frames to suit every face shape and personal style

Conclusion

Digital eye strain is a common issue affecting many Canadians, including those living in Okotoks and Alberta. By understanding the differences between blue light and bright light, you can take steps to reduce your risk of digital eye strain. Remember to follow the 20-20-20 rule, adjust your display settings, and take regular breaks to alleviate this issue.

Visit our Okotoks location today for expert eye care and eyewear services. Our team is committed to helping you maintain healthy vision and protect your eyes from digital eye strain.

References and Further Reading

(1) Sheppard AL, Wolffsohn JS. Digital device use and eye health in children and adolescents: A review of the literature. Journal of Clinical Ophthalmology 2018;12:1315-23.

(2) Chang AM, Sanchez CA, Patel SR, et al. Blue light exposure and melatonin suppression. Sleep Health 2016;2(3):257-65.

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References and Further Reading

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