Blue light travels in shorter wavelengths and with higher energy than other types of light. Its main source is the sun, but can also be emitted by fluorescent lights, LED lights, flat screen LED TVs, smartphones, computer monitors and tablet screens.
Children are more prone to excessive blue light absorption from digital devices than adults. In this post, your local family eye care specialist, Vision Care Plus, discusses whether blue light glasses are really effective in protecting the eyes.
What Blue Light Glasses Don’t Do
When blue light reaches the retina, it can cause your eyes to age prematurely. Research suggests that extended exposure to blue light is linked to digital eye strain and retinal damage, which could lead to age-related macular degeneration.
Many people purchase blue light glasses in the hopes of protecting their eyes from the harmful light. However, the American Academy of Ophthalmology spokesperson, Rahul Khurana, says digital eye strain and the effects of blue light are two different issues.
He mentions that eyestrain isn’t caused by the computer screen, but rather by looking at the monitor for hours without breaks. Digital eye strain can occur when you spend too much time focused on anything, whether a screen or a book. You can prevent it by practicing the 20-20-20 rule: after 20 minutes of close-range work (whether on a computer or reading a book), look at an object 20 feet away for 20 seconds.
If you’re experiencing eye discomfort while using digital devices, visit your local optometrist for proper diagnosis and treatment.
How Blue Light Glasses Help You
The only real benefit of blue light glasses is helping you sleep better. Blue light interferes with the production of melatonin, which is the hormone that regulates your sleep-wake cycles.
You don’t actually have to wear these glasses during the day because daytime exposure to sunlight makes you more attentive and improves your mood. However, at night when your body is supposed to naturally wind down, blue light glasses can help you get to sleep. It’s also advisable not to expose yourself to digital screens two to three hours before bed.
Regularly visit your doctor for routine eye exams to ensure your eye health and maintain your vision. At Vision Care Plus, we are your local provider of vision therapy, quality eyewear and contact lenses. Call us at (844) 201-5900 or schedule an appointment online. We help patients in Leduc, AB, and other areas around Alberta.