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Jul 5, 2022 · Blue light-blocking glasses are not effective in preventing eyestrain or improving sleep quality, according to research. Learn why blue light exposure is not a major concern and how to protect your eyes from other factors.
Jun 7, 2024 · A 2023 systematic review of 17 randomized control trials found no benefit to using blue light-filtering glasses compared to standard lenses in reducing eye strain. “There is no reason to think ...
- Overview
- Why does blue light matter?
- Do blue light glasses work?
- Are there any lifestyle tips for reducing blue light exposure?
- What are the side effects of blue light exposure?
- When should I speak with a doctor?
- The takeaway
Blue light, also called blue-ray light, is a specific kind of light with a short wavelength.
This type of light is emitted from your computer screen, your mobile device, your flat-screen television, and many other devices that have screens.
Daily blue light exposure is exploding
The average person’s blue light exposure has increased exponentially in recent years as smartphones and laptops become more prevalent in daily life. But physicians are observing that blue light exposure may actually damage our eyes, according to a 2018 research review.
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To help reduce damage from blue light, blue light glasses and lenses have been introduced. These may help limit the amount of blue light exposure your eyes get every day.
Blue light is a type of visible light on the light spectrum. It has a relatively short wavelength of 415 to 455 nanometers. Because of this, blue light rays contain more energy than many other light types.
Blue light isn’t produced by artificial sources only. We see blue light naturally every time we look up at a blue sky.
For thousands of years, humans were exposed to blue light only during the hours that the sun was up. So, our brains are trained to interpret blue light as a cue to be alert, energetic, and keep our bodies ready for action.
That’s why blue light exposure from a device can confuse your body. Your waking and sleeping cycle can be thrown off by high levels of blue light exposure — for example, from an artificial source (like your smartphone) in an otherwise dark environment.
And if you’re exposed to too much blue light during the day, your eyes can grow fatigued.
Dry eye is also a side effect of too much blue light exposure. You may be on your devices for more than 10 hours each day, both at home and at work — so you might be all too familiar with these symptoms.
The American Academy of Ophthalmology doesn’t currently recommend special blue-light-filtering glasses for use when you work with computers.
This may change in the future. A study that’s currently underway intends to more comprehensively examine whether blue light glasses have definitive benefits.
But in general, the evidence for blue light glasses as a preventive measure for reducing blue light exposure is mixed.
A 2017 review of three clinical trials found “poor” evidence to support the use of blue-light-blocking glasses to preserve eye health and prevent dry eye.
And another 2017 study found that only one-third of study participants said they benefited from using glasses with a blue-light-blocking coating on the lens. These participants claimed that the glasses reduced glare and improved vision during the time they were looking at their screens.
It’s also worth noting that this latter study was funded by blue-light-blocking lens retailer Swiss Lens Laboratory Ltd. This can indicate some bias in study results, due to private funding with a vested interest in outcomes that may drive company profit.
You don’t have to purchase blue light glasses to reduce your exposure to blue-ray light.
Protect your eyes from eyestrain and fatigue by adopting some eye-health-friendly habits, including:
•Take “eye breaks” from your screens. You can do this by going on walks outside during the day. Avoid checking your phone during these breaks. You can also get vitamin D during time outside and connect with the natural world, which can both decrease stress.
•Dim the lights in your home or workspace. Consider using red light as opposed to an LED bulb as a nightlight in your bedroom. Red light is less likely to disrupt your circadian rhythm because red wavelengths are shorter.
•Take up hobbies that don’t involve screens. Screen-free time — perhaps spent reading, crocheting, or baking — can help decrease your blue light exposure.
•Look into installing “blue-free” light bulbs. You can set these up in your home, and they’ll emit lower levels of blue light.
According to a 2016 review, research suggests that over time blue light exposure can result in more than just eyestrain and fatigue.
Computer vision syndrome, a set of symptoms related to screen time, is experienced by up to 90 percent of computer users, according to 2011 research.
Symptoms of computer vision syndrome include:
•eyestrain and fatigue
•dry eye
•blurred vision
Blue light exposure may already be causing you to have symptoms like eyestrain and dry eye.
If these symptoms don’t resolve with lifestyle changes and self-care strategies, speak with an eye doctor about them.
You should also make an appointment with an eye doctor if you experience the following:
•frequent bouts of eyestrain
•eyestrain that lasts for days
•prolonged, frequent symptoms of dry eye
As far as blue light glasses go, the definitive verdict is still out in their ability to substantively reduce your exposure to blue light and the associated symptoms of exposure.
But limiting blue-light exposure, adopting habits to take better care of your eyes, and taking breaks from your screens can all help you avoid dry eye and eyestrain caused by blue light exposure.
Nov 1, 2021 · Policy. Wearing blue light glasses may sound like a good solution, but a recent study determined there was little evidence to support the use of blue-blocking filters in the prevention of digital ...
Feb 10, 2023 · Summary. Manufacturers claim that blue light glasses can filter out blue light and help reduce symptoms such as headaches, eyestrain, and poor sleep. However, research does not support these ...
Dec 15, 2023 · CLEVELAND – If you’ve been thinking about buying some of those blue light glasses that claim to help with eye strain, you may want to hold off. Research shows they don’t actually work. “I know it’s really tempting from the consumer side of things that you buy this product, and it’s going to make you so much more comfortable ...
People also ask
Do blue light glasses really work?
Should you wear blue light glasses?
How do blue light glasses work?
Can blue light glasses prevent eye damage?
Do glasses block blue light?
Can blue light glasses improve sleep?
Aug 29, 2023 · Yes, blue light glasses work to reduce exposure to blue light, but no, they don't work to protect your eye health or accomplish many of the other claims sellers make, says See. "It’s not hard to ...
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related to: Do blue light glasses really work?9.0/10 (22243 reviews)
Thousands of Glasses to Choose From - Find Frames to Fit Every Look. Come See Now! Find the Lenses You Need at Prices You'll Love. Frame + Lenses, Starting at $6.
Blue light blocking computer glasses with magnetic changeable frames & prescription lenses. Shop Rx lenses starting at $60. Free shipping on orders $45+ and free easy returns always.
Compare the Best Blue Light Blocking Glasses. Get Reduced Eye Strain from Screens. Reduce Eye Strain from Screen with Blue Light Blocking Glasses. 100% UVA &UVB Protection.
