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What are blue light glasses?
Are blue light blocking glasses good?
Do blue light glasses filter blue light?
Why do people wear blue light glasses?
How do blue light glasses work?
Are blue light glasses good for Your Eyes?
Blue light glasses (sometimes called blue light blocking glasses) are glasses that contain lenses specifically designed to reduce the amount of blue light that reaches the eye. These lenses filter blue light rays to help prevent them from entering your eye and causing potential damage.
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Jun 7, 2024 · Blue light glasses are prescription or nonprescription glasses that feature a special coating to block a portion of the blue light spectrum, reducing the amount of blue light that reaches...
Aug 24, 2024 · Blue light glasses are not the answer to long hours on your phone or computer. Learn why the design got attention and what to do instead.
- Overview
- What exactly is blue light?
- What are blue-light-blocking glasses?
- What are the benefits of blue-light-blocking glasses?
- How much do blue-light-blocking glasses cost?
- Tips for buying blue-light-blocking glasses
- The takeaway
Blue-light-blocking glasses reduce how much blue light from electronic devices reaches your eyes. But it’s unclear how beneficial this actually is.
You’re probably doing it right now — looking at a computer, phone, or tablet that emits blue light.
Staring at any of these for an extended period of time can lead to computer vision syndrome (CVS), a unique type of eyestrain that causes symptoms like dry eyes, redness, headaches, and blurry vision.
One solution that eyeglass manufacturers have proposed is blue-light-blocking glasses. These are purported to block the potentially harmful blue light that electronics emit. But whether these glasses actually reduce eyestrain is controversial.
Blue light is a wavelength that’s naturally present in light, including light from the sun. Compared to other light types, blue light has a short wavelength. This is important because doctors associate short-wavelength light with greater risk for eye damage.
While many electronics (including lightbulbs) emit blue light, computer screens and televisions typically release more blue light than other electronics. This is because computers and televisions commonly use liquid crystal displays or LCDs. These screens may look super-clear and vibrant, but they also release more blue light than their non-LCD counterparts.
Too much blue light exposure is thought to:
•affect your circadian rhythm, which can make it harder to go to sleep at night
•cause headaches
•increase eyestrain
In an attempt to reduce the possible harm and potentially negative effects of extended blue light exposure, eyeglass manufacturers have developed eyeglass lenses with special coatings or tints designed to reflect or block blue light from reaching your eyes.
The idea behind blue-light-blocking glasses is that wearing them can reduce eyestrain, eye damage, and affected sleep. But there isn’t a lot of research to back up the claim that the glasses actually do this.
In theory, blue-light-blocking glasses help reduce eyestrain. But this hasn’t been definitively proven by research.
A 2017 review looked at three separate trials related to wearing blue-light-blocking glasses and eyestrain. The authors didn’t identify any reliable evidence to link blue-light-blocking glasses with improvements in vision, reduced eyestrain, or improvements in sleep quality.
A small study from 2017 measured 36 test subjects wearing blue light glasses or a placebo. The researchers found that those who wore the blue light glasses for a 2-hour computer task experienced less eyestrain, eye itching, and eye pain compared to those who did not.
But other researchers have criticized this study because it had the potential for bias.
Blue-light-blocking glasses are available as:
•prescription lenses
•over-the-counter (OTC) reading glasses
•glasses that are only used for the purpose of blocking blue light
OTC blue-light-blocking glasses can range in price from $13 to $60. Prescription blue-light-blocking glasses are more expensive. The price will depend on the type of frames you choose and may range from $120 to over $200.
If you have medical insurance and need prescription blue-light-blocking glasses, your insurance plan may cover part of the cost.
While blue-light-blocking glasses are available in many retail stores, they aren’t endorsed by major eye professional societies.
But if you would like to try out blue-light-blocking glasses for yourself, here are some considerations:
•Where to buy: You can buy blue-light-blocking glasses at many major retailers that sell sunglasses. Some online eyeglass brands, such as Warby Parker and EyeBuyDirect, offer a blue-light-blocking coating on their prescription eyeglasses.
•UV protection: If you’ll be spending time outdoors with your blue-light-blocking glasses, make sure they have UV protection.
•Comfort: As with many glasses brands, comfort is a major consideration. Look for lightweight glasses that don’t pinch the bridge of your nose, don’t slide down your nose, or feel too tight behind your ears.
If you aren’t sure if blue light glasses are beneficial or right for you, you may want to start off with a low cost pair that’s comfortable to wear.
The effectiveness of blue-light-blocking glasses isn’t backed by a lot of research. But if you spend a lot of time in front of your computer or watching television, you may still want to try them to see if they help reduce eyestrain and improve symptoms like dry eye and redness.
You can also help reduce eyestrain by taking 10-minute rest breaks from your computer or digital device every hour, using eye drops, and wearing glasses instead of contact lenses.
- Rachel Nall, MSN, CRNA
Sep 8, 2020 · Blue light glasses feature special light-filtering technology that prevents a certain percentage of blue light from reaching the eyes. These FAQs will provide a better understanding of what blue light is, how glasses can filter blue light and why it's a good idea to wear blue-violet light filtering glasses. What is blue light?
Oct 9, 2024 · Good blue light blocking glasses will save your eyes from strain and fatigue. We tested 21 pairs across multiple brands, styles, and price points to see how well they perform. These 9 gave us the clearest vision and most comfortable fit.
Sep 26, 2024 · We've tested a range of blue light blocking glasses, including budget-friendly pairs, prescription-friendly eyewear, and fashionable glasses to help you find the right set for your eyes.
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