blue blocker lcd panel test supplier

Sleep is a crucial aspect of our physical and mental wellbeing.  Not getting enough rest has been linked to cardiovascular disease, diabetes, obesity, infection, inflammatory conditions, mood and mental health risks, car accidents, and issues with memory and cognition.  Many people have trouble sleeping at night, often thought to be due to insomnia, when in actuality they have a circadian rhythm disorder known as delayed sleep-wake phase disorder, which can be due in large part to the negative impact of blue light.

Blue light, as emitted from our many devices and artificial lights, can be detrimental to our sleep through disruption of our circadian rhythm, or internal clock.  Our internal sleep-wake schedule is in large part dictated by the naturally produced hormone melatonin.  Our bodies are built so that in the evening when the sun goes down and it gets dark, melatonin is released from our pineal gland, keeping our circadian rhythm in sync and helping us to sleep at night and be awake and alert during the day.  Studies have shown that blue light actually suppresses this naturally occurring melatonin release, diminishing one of the major driving forces propelling us to sleep.  While in modern society it is hard to completely escape evening blue light, utilisation of blue light filters and low blue light products such as those offered by Ocushield can go a long way to reducing blue light’s deleterious effect on sleep.

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Forito sells blue light screen protectors and ranks as a best seller on Amazon. The brand makes screen protectors for laptops and desktop computers and claims it is a leading screen filter manufacturer.

Forito claims to use the newest blue light filtering technology. The company also states that its screen protectors are anti-static, anti-glare, and anti-scratch. They can also block 100% of UV-400 rays and protect against radiation.

EYES PC offers a range of different blue light screen protector panels. These products are compatible with laptops, desktop computers, large monitors, and television screens.

This brand sells screen protectors in sizes ranging from 11-in laptop panels to panels large enough to fit a 65-in television. They are 2 millimeters (mm) thick.

EYES PC also claims the product’s test data meets Food and Drug Administration (FDA)-accepted American National Standards Institute (ANSI) Z80.3 test standards.

This VizoBlueX is available in different monitor sizes. It promises to maintain the full-color spectrum visibility while blocking up to 100% of blue light to reduce eye fatigue and improve sleep.

It claims to protect the eyes from harmful UV and blue light — up to 99% between 300 and 400 nanometers (nm) and up to 54% between 400 and 470 nm. It also promises headache relief, better sleep, and reduced glare and reflections.

Aside from protecting against blue light and UV, the brand says this tempered glass product provides five times more protection than a typical plastic screen protector. It includes installation instructions, a 2-year warranty against scratches and damages, and free shipping.

No time to read about how to test blue light glasses? Maybe you don"t really care to know how much blue light is being blocked and you just want to know what the best blue light blocking glasses are.

With so many options on the market, and screen time rapidly increasing you might be asking yourself, “How do I know my glasses are actually blocking blue light?”

In this article, we’ll dispel myths about how to accurately test blue light filtering glasses, and explore the best ways to determine the quality and effectiveness of your blue light blocking glasses.

Effectively, we"re going to show you the easy way to test blue light glasses, talk about ways to identify when your blue light glasses work and when they don"t, and how to ensure that if you"re going to wear glasses to block blue light that you"re doing it effectively.

Just to let you know early, our business was built creating the best computer glasses with clear lenses, and the best blue light glasses for sleep with orange lenses, that far outpace the ones with only yellow lenses, and don"t radically distort your vision like the ones with red lenses. If you"re ready to take our word for it, just click here to shop the best.

The reason we do not recommend relying on a visual test where you look at particular color strips or doing the somewhat misleading "rgb color chart test" on your screen is simple.

The color grade, brightness levels, brand and type of screen itself are all variable factors that can distort colors and are going to result in unreliable and inconsistent results when trying to accurately test your blue light glasses.

As blue light operates on the visible spectrum of 400-500 nanometers, there is no possible way to know what part of the spectrum the colors on your laptop screen or other electronic devices are emitting without additional equipment.

Not to mention that roughly 4.5% of the population has some degree of color blindness, many of whom are not even aware of it. While it may appear your blue light glasses are passing an online test, the glasses may not actually be blocking the full spectrum of blue light, or conversely, failing the test does not necessarily mean your glasses for blue light protection isn"t working.

The best blue light glasses are the ones that block 99% or more of the entire blue light spectrum in a proper, scientific test, as well as help you feel the effects and benefits they claim to provide.

For instance, we had a test performed on our Night Swannies blue light glasses with the orange lenses by the University of Washington and the University of Indiana, proving that our blue light filter glasses block blue light just like we say they do, and improve sleep as well as work outcomes the following day.

Another reason these online tests aren’t reliable is that your eyes can deceive you, and are subject to optical illusions. This is why professional color graders use a series of color scopes to ensure that the colors in a film are correct, and do not just rely on their eyes.

Another example is the infamous blue/white dress that no one can agree on. This is another perfect example of how we can’t rely on our perception of color, especially when it’s displayed on a screen.

Now that we’ve established that doing things on a screen is an unhelpful way to test your blue light glasses, what is the right way to test your glasses?

This testing should be an essential part of quality control for blue light blocking glasses, and these results should be readily available to anyone who would like to access them, preferably published publicly on a website.

You should also be concerned if the tests provided are performed internally by the company and not performed and certified by an independent specialist testing facility.

Swanwick has its lenses independently tested by Colts Laboratories in Oldsmar, FL. These transmission reports are readily available and published at the following link: Swannies Transmission Reports.

Transmission reports can be daunting at first. What you’ll want to look for is the spectral analysis table that shows the % of transmission for each nanometer increment. You’ll want to look at the correlating percentages for each nanometer increment between 400-500nm, which is the blue light spectrum. For orange-tinted glasses, you should see less than 1% of blue light transmittance across the full spectrum.

For blue blockers with clear lenses, focus on the 400-450nm range as this is the most harmful part of the spectrum. If the test results show over 50% blue light transmission at 420nm and more than 70% transmission at 450nm, then they are unlikely to be very effective.

Swanwick’s customer service team is always on hand to help you with any questions about likely effectiveness of a blue light test, scientific studies or how to read blue light transmission reports.

Feel free to reach out to us via our Contact Us form and we’ll take care of your concerns. We"re passionate about blue light glasses and love being the reputable brand that people choose to get the protection they need to for sleep improvement and find more energy.

Blue light transmission reports are great for giving you an accurate indication of how much blue light your glasses block. Another part of the picture is to find out whether your brand of glasses have lenses that have been involved in any independent clinical trials.

These types of studies can also give you a good indication as to whether your blue light blocking glasses are likely to be an effective source of relief for disturbed sleep patterns.

Swanwick’s Night Swannies have been used in several independent studies which you can read about right here. The data from these studies showed that the blue light filtering technology used in Night Swannies improved both sleep factors and performance.

You may have seen examples of a test where little blue led lights are shone onto a card with blue light sensitivity, similar to the image below. Some blue light blocking glasses actually come with this card and light to ‘test’ your glasses. If you see this, be very cautious. This is a marketing trick which is designed to falsely represent the blue light blocking effectiveness of the lenses.

The blue light that is used to demonstrate this ‘test’ only operates at a very low blue light wavelength, usually around 405nm. So all this blue light test does is show you that the lenses filter blue light at that one very specific wavelength, which represents only 1% of the full blue light spectrum.

Most blue light glasses that rely on this trick block very little blue light across the full blue light spectrum and if you were to apply the same test to the lenses at higher wavelengths, they would most certainly fail. These low-grade blue blocking glasses need to block more blue light to be effective, and will not help with digital eye strain or sleep health.

As you can see, not every test is created equal and it’s easy to be tripped up these blue light gimmicks. So, what"s the best blue light filter test? How can you accurately test your blue light glasses? It depends.

As we like to say here at Swanwick, look at the science. The best way to test blue light glasses is to have an independent body perform the transmission test, with studies conducted under scientific conditions by professionals.

That"s your only way to get a true indication of the effectiveness of your blue light blocking glasses. Now that you are armed with the facts, you’ll be better informed about where to invest your money to protect your eyes, and get your best sleep of your life. Also, be aware that there is a difference between computer classes that filter less blue light and glasses to be worn before sleep which block more blue light.

If you’d like more help in deciding what quality blue light blocking lenses are right for you, please see our recommendations below. (We"ve got the answers.)

Digital eye strain and other symptoms from viewing LCD or LED screens, or any other type of screen for too long is becoming more prevalent. Utilizing the blue light filtering clear lenses in our Day Swannies Blue Light Glasses and Swannies Readers Blue Light Glasses is a great way to protect yourself from digital eye strain and work smarter.

Blue light from electronic devices is being emitted at an exponential rate and the fact is, everyone needs a pair of computer glasses that will block the necessary light on the blue light spectrum.

Worn in the hours before bedtime, Night Swannies block over 99% of all blue light to protect your melatonin* levels during the important pre-sleep phase of your evening. This helps you fall asleep faster, sleep longer and achieve a better quality of sleep.

For sleep improvement you can"t rely on computer glasses... not even our Day Swannies. While they will assist, they are designed to only block a certain amount of light on the blue light spectrum, and that will not prevent a disruption in your sleep.

To get the best night"s sleep of your life, you need to block 99% of blue light or more, and that"s why Night Swannies blue light glasses are considered to be the best blue light glasses on the market. We"re the most scientifically validated, and our orange lenses block over 99% of blue light. Get yourself (and everyone else in your family) a pair of them today:

Even tablets and devices with blue light filters aren"t enough to send you to sleep like a pair of Night Swannies that block both blue and green light.

Green light is the latest fad that some companies are hyping up. Usually, these companies are specifically marketing glasses with deep red lenses. Before you get caught in their marketing, we take a look at what green light actually is and whether or not it has an actual effect on your health in this article over here.

Spoiler Alert: No matter your concern, Night Swannies blue light blocking glasses block both blue and green light to the extent necessary to ensure an amazing night of sleep. It"s simply our business to offer you the best.

According to Japanese ophthalmology special column: worsening eyesight is 65% higher than ten years past due to staring at screens for a long time. The primary culprit of blue light emissions comes from white LED lights,which forms a weakening and progressive degeneration of vision (myopia, farsightedness)

Jun Rong TV/LCD screen filter protectors, which can effectively reduce the blue light penetration, protect the fragile LCD/ TV from foreign objects puncture or impact.

(2)• Thrown Objects – Homes with small children understand their kids are going to touch the television screen as well as throw toys, blocks, and other small objects at the display from time to time. While they normally do not do this intentionally, the impact from these objects can leave scratches, indents, and small cracks in the display. The LCD TV screen protector protects the screen when teens and adults get frustrated playing video games and possibly throw the controller at the TV.

(2)Windows – in the daylight hours sunlight can cause an annoying glare on many of the large panel TV’s. You can choose to watch television in the darkness and cover your windows, or find some way to reduce the glare.

In our modern world, people spend more time than ever in front of screens. In fact, nearly one-third of adults report being online almost constantly throughout the day. Despite its many advantages, this explosion in digital gadgets also comes with a price. Your computer screen, tablet, and smartphone all emit high-energy blue light similar to the sun. When you use these digital devices into the late hours of the evening, the blue light exposure can disrupt your sleep-wake cycle.

To combat the effects of screen time before bed, more and more companies are offering glasses with special lenses that can block blue light from reaching your eyes. These blue light blocking glasses offer a safe and drug-free way to make sure late-night screen time and artificial lighting don’t affect your sleep.

Blue light blocking glasses are a fairly new type of technology, and the industry lacks a clear set of regulations to guide shoppers. Whether you’re a gamer or just need to get some work done on your computer before bed, we’ll help you sift through the marketing claims to find the best pair of blue light blocking glasses for your needs.

EyeBuyDirect (EBD) takes an unconventional approach to blue light blocking glasses. Customers can choose from more than 1,400 different frame styles, then select the type of blue light blocking technology they’d like for their eyewear depending on their preferences and needs.

EBDBlue Plus technology includes advanced blue light blocking, UV protection, an anti-static layer to safeguard the glasses from dust, and a lens coating to reduce smudging. EBDPlus 360 builds on this by offering the same features as EBDBlue Plus as well as a special coating that minimizes reflections by as much as 50% during the day. The innovative EBBBlue Smart option enables the lenses to automatically adjust based on natural light and darkness levels. Lastly, SightRelax glasses have a slight magnification at the bottom of the lenses to improve vision and ease discomfort for gamers, E-readers, and other people with screen-centric lifestyles, as well as employees and students who spend most of their day using a computer.

The Ocushield Anti Blue Light Glasses are comfortable and lightweight yet highly effective at protecting your eyes. The lenses are designed to block up to 99% of UV rays and blue light emissions with wavelengths that fall between 300 and 400 nanometers (nm), as well as 40% of emissions in the range of 400 to 470 nm. This makes them well suited to late-night workers and other people who need to use electronic devices before bed.

Felix Gray offers a wide range of frames for blue light glasses. Each of the brand’s 17 adult-friendly styles are designated as narrow, medium, and/or wide, so you can make a selection based on what will fit most comfortably. Four of the frames are designed for “low bridge” noses that sit below the pupils. You can choose between clear or amber lenses depending on your personal preference, and most of the frames are available in at least two to three different colors.

The Nash, Roebling, and Faraday designs are also available in kid sizes for age ranges of 4 to 8 years or 9 to 13 years. The lenses for every Felix Gray style have been treated with a proprietary anti-glare coating intended to reduce blue light exposure by as much as 98%. You can arrange for the glasses to match your existing prescription. Most styles are also available as reading glasses.

While blue light blocking glasses can improve your melatonin levels and help you sleep soundly, it’s important to note that some blue light is essential for a balanced sleep-wake cycle. The Day Swannies from Swanwick are designed to block wavelengths ranging from 400 nm to 450 nm, which is considered the most harmful range across the blue light spectrum. Wavelengths between 450 nm and 500 nm pass through the lenses, keeping you alert as you go about your day without incurring too much blue light exposure.

People who typically use computers, tablets, and other screen devices for their profession are great candidates for the Day Swannies. The lenses are fairly clear, and aren’t as tinted as many of their counterparts on the market today. This makes the glasses less suitable for nighttime use — Swanwick sells a separate “orange lens” collection with stronger blue light blocking capabilities — but you can wear them throughout the day as you use electronic devices. Each pair is equipped with a pair of spring hinges, giving the frame a flexible feel.

LOOK OPTIC is an eyewear company that produces a line of Blue-Light Readers designed to block blue light from your gadgets. Since LOOK OPTIC specializes solely in readers, these glasses are a good choice for shoppers who are in the market for reading glasses but do not necessarily need prescription eyewear.

While some blue light glasses feature lenses that are coated with a blue light-blocking film, the Blue-Light Reader features a proprietary RetinaShield Blue lens that directly filters out blue light without the use of a film, which can erode over time. The lens is made of CR-39 material and is designed to resist scratches, which helps preserve the integrity of the light filtering function. Shoppers can choose between five magnification options, from zero to 2.5. Those who aren’t sure of their ideal magnification can consult an eye chart provided on the LOOK OPTIC website.

If you are selective about how your readers look, the Blue-Light Readers are available in eight different styles — and each style comes in a wide variety of colors. All glasses are lightweight and feature spring hinges that can be easily adjusted for a good fit.

LOOK OPTIC provides free shipping and returns within the contiguous U.S. Customers receive a 90-day trial to test out the readers. Those who are dissatisfied may return the readers for a full refund. The glasses are also backed by a 1-year warranty.

Many brands offer blue light glasses designed for women, but Sojos Vision exclusively caters to this demographic. The company’s current selection of blue light glasses includes nearly 150 different styles. You can filter the results to choose by color, frame type, full- or semi-rim shape, and size in order to find the perfect fit.

Sojos Vision uses photochromic lenses engineered to not only block most blue light but also automatically adjust to transitioning light conditions at different times of the day. After choosing your frames, you can customize the lenses based on personal needs. Options include “single need” for nearsightedness or farsightedness, progressive lenses that correct both of these conditions, readers, or non-prescription if you just want the benefits of blue light glasses.

If you’re in the market for blue light blocking glasses but aren’t sure which design best suits you, Peepers offers an unparalleled selection of frame styles. The current lineup features 100 individual models that vary in terms of weight, dimensions, shape, and color. Choose from minimalist looks, throwback styles, and more colorful options. All pairs are designed to filter blue light and block up to 99.9% of UV rays.

The Teen Blue Light Glasses from Jonas Paul Eyewear are a low-cost option for high school students and young adults. The lenses in each pair are engineered to block roughly 56% of blue light with wavelengths of 380 to 450 nanometers, the range that has been shown to negatively impact circadian rhythm the most. However, the lenses won’t hinder exposure to blue light with a wavelength of 460 to 500 nanometers, which promotes healthy sleep and mood regulation.

The Teen Blue Light collection includes four different designs for teens who don’t normally wear prescription glasses. The Vint, Charlie, Margaret, and Katherine styles are all available in three color and design options. Your teen can visit the product page of each set of frames and use the “Virtual Try-On” feature to see how they look. This eliminates the need for testing out the frames in person. Each style has different lens and bridge measurements.

All Teen Blue Light frames carry the same affordable price-point and standard ground shipping is available anywhere in the U.S. You can also opt for expedited delivery. Returns are accepted within 30 days of receipt.

Blue light refers to a specific wavelength in the visible spectrum. The visible spectrum encompasses all the light wavelengths that the human eye can see, including the entire rainbow of colors from red to violet. Among the visible colors, blue light has a relatively short wavelength and delivers high levels of energy to the eye.

Blue light is very common. When you go outside, your eyes are awash in blue light coming from the sun. Artificial sources of blue light are also ubiquitous in modern life. From fluorescent and LED lighting to all of the various screens we use, we’re frequently bathed in blue light from morning to night.

While blue light during the day plays a positive role in regulating our sleep-wake cycle, too much exposure to blue light in the evening can disrupt sleep patterns for children and adults alike. One solution is to end screen time several hours before bed. But for those who don’t want to give up their nightly gaming session or Twitter scroll, blue light blocking glasses can help shield your eyes from this high-energy wavelength in the evening.

With hundreds of options on the market, choosing the right pair of blue light blocking glasses can seem like a daunting task. It’s key to arm yourself with an idea of your own preferences, as well as a basic understanding of the science behind blue light blocking glasses.

From fit and color to cost and customer service policies, keeping certain key factors in mind can help you narrow down your choices when shopping for blue light blocking glasses.

Light BlockingBlue light blocking glasses come in a range of different light blocking abilities. Consider what time of day you’ll be using your blue light glasses, and how much blue light blocking you really need. Glasses with red- or orange-tinted lenses block a wider spectrum and larger percentage of blue light. However, they can also distort the colors on your computer screen. Clear or light yellow-tinted glasses are designed to target a narrower range of high-energy blue light commonly emitted from artificial sources. These may be more appropriate for daytime use.

Shape and WeightTo be able to read, complete computer work, or play games comfortably for several hours in the evening, you’ll need a pair of blue light blocking glasses that suits the shape of your face and doesn’t feel cumbersome. If you already wear prescription glasses, consider finding a pair of blue light blocking glasses that are large enough to comfortably sit over your current glasses. Many people also prefer glasses that are lightweight, so be sure to check the weight of your chosen model before purchasing.

Size OptionsFor the best chance at finding a pair of blue light blocking glasses that fit your face, you’ll want to search for a model that offers multiple size options. Before buying, try them on or double-check the dimensions. Two of the most important measurements to take note of include the width of your face and nose.

Style & Color OptionsBlue light blocking glasses are available in many different colors and styles. Some manufacturers sell glasses in packs of two or three so you can switch the glasses to suit your current mood. If style is important to you, you may prefer to opt for glasses with less of a yellow tint, bearing in mind that this style generally allows a greater percentage of blue light to reach your eyes.

Trial & Return PolicyIf you’re ordering your blue light blocking glasses online, it’s important to find a model that comes with a generous trial period or return policy. Eyewear is very personal, and if you’re not able to try on a pair of glasses before you make your purchase, it’s nice to be able to return them in the event they don’t fit properly or the color and style aren’t what you expected.

CostBlue light blocking glasses can cost anywhere from $15 to $50, with many models around the $20 price-point. More expensive glasses may offer additional features, such as more unique style options or a greater percentage of blue light blocked. When shopping for blue light blocking glasses, you’ll have to weigh the benefits against the cost and keep your personal budget in mind.

Blue light blocking glasses are glasses that are designed to prevent blue light from reaching your eyes. The concept of blue light blockers is based on the discovery that exposure to blue light suppresses the release of melatonin, the sleep hormone. Blocking blue light is therefore thought to be an easy and inexpensive way to help people sleep after using electronics in the evening. Glasses designed to filter out only the most high-energy blue light may also help reduce eye strain during the day.

Natural blue light emitted by the sun is crucial for regulating your sleep-wake cycle. During the day, exposure to sunlight promotes alertness. At night, darkness stimulates the release of melatonin. Without these natural light cues, your body would have a hard time knowing when to wake up and when to fall asleep.

Due to the ever-increasing availability of artificial light sources such as light bulbs and computer screens, many of us are exposed to light late in the evening. Electronic screens in particular are rich in blue light, meaning they have a similar effect to sunlight. Extensive research has shown that excessive screen time, especially before bed, can disrupt the natural regulation of your sleep-wake cycle.

Blue light blocking glasses are designed to specifically filter out the blue wavelengths of light before they reach your eyes. Most blue light blocking glasses target ultraviolet light with a wavelength of 200 to 400 nanometers (nm), as well as violet light between 400 and 440 nm and blue light up to 500 nm. With less blue light reaching your eyes, your body is free to produce melatonin to help prepare for sleep.

Traditional blue light blocking glasses are orange- or amber-tinted. As blue light is a visible wavelength, filtering out blue light has an effect on the way you perceive colors. Therefore, while orange and amber blue light blockers may be more effective than clear glasses, most people consider them to be less user-friendly, especially for applications that require seeing colors.

Accordingly, some manufacturers market blue light blocking glasses with lenses that are practically clear. These glasses target high-energy violet and blue light between 400 and 450 nm, but they filter out a smaller percentage of blue light overall. They are engineered to offer a balance of blue light blocking and normal visibility.

Emerging evidence suggests that using blue light blocking glasses may successfully prevent bright lights from interfering with your sleep hormones. In these studies, people who wore blue light blocking glasses sleptbetter and didn’t experience the drop in melatonin normally associated with evening light exposure.

Before the advent of electricity, humans slept and woke according to the timing of the sunrise and sunset. Sunlight is composed of a wide range of light wavelengths, including the entire visible spectrum from red to violet as well as ultraviolet (UV) and infrared wavelengths. However, blue light in the range of 446 to 477 nm has the most significant impact on the sleep-wake cycle.

When it comes to natural light from the sun, blue light is very helpful. Exposure to a healthy amount of blue light in the daytime promotes alertness and helps you sleep better at night. However, too much blue light exposure later in the evening makes it harder to fall asleep and may also contribute to poor sleep quality and morning grogginess.

Popular electronic devices such as smartphones, tablets, gaming devices, and televisions emit blue light. Blue light blocking glasses are intended to act as a barrier between you and these artificial blue light sources to prevent your late night screen time from disturbing your sleep.

In addition to wearing blue light blocking glasses, there are many lifestyle changes you can make to reduce your exposure to blue light in the evening. You may also want to consider talking with your eye doctor about bright light exposure and protection at your next eye exam.

One of the most effective ways to reduce blue light exposure and improve your sleep is to avoid using electronics before bed. Ideally, you should try to end screen time at least 1 hour before you go to bed, to give your body time to ramp up melatonin production. Instead of scrolling through social media, consider winding down by reading a book or listening to music.

Fluorescent lights and LED bulbs typically emit more blue light than warmer-toned incandescent light bulbs, though plenty of manufacturers are starting to make LED lightbulbs that emulate the color pattern of incandescent lightbulbs. Consider switching to warmer-toned lightbulbs or installing a dimmer to reduce the brightness of your home lighting as you approach bedtime. Similarly, using a dim red night light during midnight bathroom trips can help provide illumination while limiting your blue light exposure.

If you must use electronic devices at night, consider installing dimming software. Software programs such as f.lux adjust the type of light that your screen emits. Using this software, your screen releases more blue light in the morning to keep you alert but slowly shifts to low-energy red light as you approach your bedtime. Some devices also come with built-in nighttime settings that switch to a black background at night, or automatically decrease the brightness of your screen and shift your display to warmer colors late in the evening.

Another option for those that must use screens at night is a physical blue light filter that can be installed over your screen to block the majority of blue light from reaching your eyes.

Blue light blocking glasses typically range in price from $15 to $50, with an average price of approximately $30. Most blue light blocking glasses don"t require prescription lenses, so they are relatively inexpensive to produce.

While there isn’t a consensus among the medical community, some research demonstrates that blue light blocking glasses may help pave the way for sleep by helping boost melatonin production. Orange-tinted lenses block more blue light than amber-tinted lenses, and amber-tinted lenses block more blue light than clear lenses. Red-tinted lenses block the most light, but they are rarely worn as they make it very difficult to see.While there isn’t a consensus among the medical community, some research demonstrates that blue light blocking glasses may help pave the way for sleep by helping boost melatonin production. Orange-tinted lenses block more blue light than amber-tinted lenses, and amber-tinted lenses block more blue light than clear lenses. Red-tinted lenses block the most light, but they are rarely worn as they make it very difficult to see.

Blue light blocking glasses are sold online and in brick-and-mortar stores, each of which offers certain advantages depending on your needs. By shopping for glasses in pharmacies, drug stores, and eyewear stores, you may be able to ask for advice from the store attendant regarding the best model for you. However, by shopping online, you"ll be able to choose from a much wider selection of brands and models. Online retailers also tend to have more competitive prices, as well as generous return policies in case you"re not satisfied with your purchase.

If the manufacturer can provide you with the transmittance spectrum report for your glasses, then you can see for yourself what percentage of blue light they block.