Blue light glasses are all the rage in ATMs. Designed to block blue light from entering your peepers, many people wear them to avoid the symptoms of digital eye strain.
But are these lenses legitimate? Here’s what the science says.
Blue light is part of the visible light spectrum. It has a wavelength of around 380 to 500 nanometers (nm). It can be absorbed by the pupil or iris of your eye and can also enter your corneas 👀.
It may get a bad rap, but blue light doesn’t all Wrong. It is naturally emitted by the sun and can stimulate your attention during the day.
The wrong side? People who spend a lot of time in front of a screen become manner no more blue light. High-energy shortwave blue light – which is around 415 to 455 nm – is the most harmful. Electronic devices like laptops, cell phones, and televisions can all emit this wavelength.
Many lenses have a coating that protects your eyes from ultraviolet (UV) rays. The blue light blocking glasses are the same idea. Most are covered with a yellow tinted material that helps filter or block blue light.
Some users say that these glasses reduce the symptoms of digital eye strain. While there isn’t enough research to show they perform at 10/10, here’s what they do strength help you with.
Eye strain is a common symptom of staring at screens all day (and night). Some studies suggest that blue light may play a role in this regard. So blue light glasses could potentially help reduce eye strain.
We know that prolonged exposure to ultraviolet (UV) light can increase the risk of eye disease. But we know a lot less about blue light.
Experts are starting to think of blue light, according to a 2018 research review strength cause eye damage. But again, we need more evidence.
Want to put your parchment on before bed? Same. Blue light glasses might help your body figure out it’s time for Mr. Sandman.
Your body uses light to keep the 24 hour cycle constant. So, exposure to blue light could disrupt your circadian rhythm.
Blue light could also impact your melatonin, a hormone that helps control your sleep cycle. A 2018 study found that people exposed to blue light for 2 hours had lower melatonin levels than those who were not exposed.
Eye strain is a common culprit behind headaches. So in theory, anti-blue light glasses strength help curb your migraine attacks. But we need more research to show it’s legit.
PS Not all eye strain headaches are caused by blue light. If your migraine episodes are caused by something else, the blue light glasses issue won’t help.
While we wait for research to prove blue light blocking glasses are where they are at, here are some other great tips for limiting your exposure.
Adjust the blue light on your screen
Keep your phone in “night mode” all day. Warmer tones are more pleasing to the eyes.
Pro tip: You can also purchase blue light filtering protective screens to reduce glare. Research shows they can block up to 60% of blue light.
Drop it up
Make sure your eyes are lubricated. Eye drops like artificial tears can keep your peepers from getting too dry. An air humidifier is also a great way to keep them moist.
A quick screen cut can make a big difference. Take a break every 20 minutes and focus on an object about 20 feet away for 20 seconds.
Give yourself some space
Try to keep your screens at bay. If the text is more difficult to read, you can adjust the font setting on your phone or zoom in on your computer.
Anti-blue light glasses strength help reduce digital eye strain. This could lead to better sleep, less headaches, and better vision. But we need more research to prove the benefits are real.
While we don’t know if they Actually to work, it can’t hurt to try. You don’t need a prescription to buy them and some brands are really cute and affordable.