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Blue Light: 4 Facts You Need to Know

According to a report published by CNN in 2016,Americans commit over ten hours a day to screen time. Whether you’re writing a report on your desktop or checking Instagram on your smartphone, you’re exposing your eyes to visible blue light. Learn more about blue light, and discover how you can protect your eyes.

Sunlight is the Main Source

You might have thought that computers and tablets were the main sources of blue light, but we receive most blue light from the sun. Blue light is the portion of the visible light spectrum that has the shortest wavelengths but highest energy, so we’re exposed to blue light as soon as we step outdoors. However, digital devices are also responsible for emitting blue light, such as smartphones, electronic notebooks, and flat-screen televisions.

Blue Light Can Increase the Risk of Macular Degeneration

Blue light penetrates the inner lining of the back of the eye, also known as the retina. Studies have shown that excessive exposure to blue light from the sun may increase the risk of macular degeneration, known to cause a variety of vision impairments such as complete vision loss.

Digital Eye Strain

When you’re staring at a computer for a significant amount of time, you might experience eye discomfort or even headaches. These side effects are known as digital eye strain, and they’re caused by blue light exposure. Eye doctors suggest wearing computer glasses or updating your current lenses to protect from blue light.

Essential for Good Health

While it’s important to protect your eyes from excessive exposure to blue light, some blue light exposure is essential for your overall health. Studies have proven that high-energy visible light increases alertness, improves memory, and boosts mood.


Here at the Catonsville Eye Group, providing the best patient care is our #1 priority. The professionalism of our doctors coupled with our capable and caring staff, state of the art technology, and extensive frame and lens options are what have made Catonsville Eye Group the first choice for families in our community. We strive to provide the best possible professional care at fair and reasonable prices to our patients in the most courteous way possible!

If you would like to schedule an appointment, order contact lenses, or ask questions about our services at Catonsville Eye Group, please call our office at (410) 747-1221 or email us by clicking this link. We will respond to your request within 24 hours.

We’re located at the heart of the Music City at 611 Frederick Rd., Suite 101. Drop on by, or schedule an appointment today. We’re looking forward to seeing you!

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