Blue Light Glasses

What is Blue Light?

Blue light is a color on the visible color spectrum that you can see. The sun, which contains all colors of the visible spectrum, was once the only source for wavelengths of blue light. However, technology has now brought blue light indoors through the creation of tablets, smartphones, computers and televisions. Blue light exposure from digital screens, especially at night, can disrupt natural sleeping patterns and can contribute to symptoms of computer vision syndrome, also referred to as digital eye strain.

How Does Blue Light Affect Vision?

Screen time can easily add up. Whether you’re watching TV, scrolling through social media on your phone or responding to emails on your computer, you’re exposing your eyes to the negative effects of blue light exposure. Blue light damage doesn’t happen overnight. The longer you spend in front of a screen without protecting your eyes, the more likely you are to experience problems in the future. Blue light symptoms may include:

  • Sore, dry, itchy or red eyes
  • Eye strain
  • Headaches
  • Sensitivity to light
  • Sore neck or shoulders
  • Blurry vision
  • Poor sleep

These symptoms are associated with digital eye strain – which is categorized as a group of vision-related issues caused by prolonged digital screen use.

Blue Light and Permanent Eye Damage

Blue light passes through your eye’s cornea and lens, reaching the retina. Some studies have shown that too much exposure to blue light can cause damage to the light-sensitive cells in the retina. This damage can cause changes in your vision, resembling those of macular degeneration – a common eye condition found in aging eyes that can ultimately lead to blindness. Although it has not been determined how much blue light exposure is too much for the retina, many eye care professionals are concerned that it may lead to serious or permanent eye damage. On average, most people spend about 10 hours a day staring at a digital screen. Therefore, it’s recommended that you wear blue light glasses to minimize any eye damage.

How Blue Light Blocking Glasses Can Help Protect Your Vision

If you spend long hours in front of a digital screen, your eyes can benefit from blue light glasses. What are blue light glasses? Blue light blocking glasses have filters that can help protect your eyes when staring at a screen. Prescription blue light glasses are designed specifically for the distance which you view your digital devices and can help correct other existing vision problems simultaneously. Blue light blocking glasses can be worn day or night for around-the-clock protection. Benefits of blue light glasses include:

  • Improved Sleep: Studies have shown that the high energy frequency in blue light can keep you up at night. Using blue light blocking glasses when staring at a digital screen can help ensure you get a full night’s rest.
  • Decreased Eye Strain: Blue light filtering glasses can help alleviate eye discomfort when staring at a digital screen and decrease symptoms of computer eye syndrome.
  • Protection Against Macular Degeneration: Digital screens can cause damage to the retina and lead to early signs of macular degeneration. Blue light glasses can help prevent cell damage to your retina.

Where Can I Buy Blue Light Glasses?

If you work in front of a computer or want to protect your eyes when using digital devices, you may be wondering where to buy blue light glasses. They can be purchased at your local pharmacy or convenience store if you have no other eye conditions or you wear contacts. Or, you can obtain computer glasses with a blue light filter with a prescription from your eye doctor so that you can also treat other eye conditions. Book an appointment at your local Pearle Vision EyeCare Centre to obtain a prescription for computer glasses with blue light protection.

Sources:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6288536/
https://sites.psu.edu/ist110pursel/2018/02/21/americans-devout-more-than-10-hours-a-day-to-screen-time-and-growing/
https://www.sleepfoundation.org/articles/how-blue-light-affects-kids-sleep


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