What is blue light therapy used for?
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How long does a blue light treatment session last?
Most blue tourmaline contains tiny amounts of iron, which give it color. Some indicolites undergo heat treatment. This undetectable process creates a lighter but stable color. Some Brazilian indicolites exhibit an intense color known as “Mutaca blue.” © Kat Florence. Used with permission. Some indicolite contains copper.
Can blue light therapy help acne?
· There were researchers have investigate the sleep quality found that after cataract surgery the sleep quality of old people have improved to some extent, the reason is that transparent artificial crystal allow more blue light penetrate to reach the eye and thus confirmed that blue light can regulate the circadian rhythm.
What is blue light therapy treatment for dark circles under eyes?
· Blue light has very short, high energy waves. In fact, they’re only slightly longer and less powerful than UV waves, which are too short for people to …
What does blue light treatment do?
Blue light therapy is most commonly used to treat sun damage and premalignant or malignant skin cancer growths. It can actually be used to prevent skin cancer and remove both precancerous skin lesions and cancerous skin lesions that haven't spread to other areas of the body (or metastasized).
How long does it take for blue light therapy to work?
Anywhere between two and five sessions are necessary, at 2-4 week intervals, for optimal results. Some people may notice results after a single session.
What is blue light treatment called?
Blue light therapy, also known as photodynamic therapy, is a type of light treatment that's used to treat diseased or damaged skin. It uses medications called photosensitizing agents along with specific wavelengths of blue light to destroy abnormal skin cells while leaving the surrounding tissue unharmed.
Does blue light have healing properties?
Conclusion: In contrast to previous studies, we showed that also blue light significantly influences wound healing. Furthermore, our data suggest that light therapy can play an important role in normotrophic wound healing by affecting keratin expression.
Can blue light harm your skin?
Blue light is also known to penetrate the skin deeper, damaging essential proteins and resulting in wrinkles and loss of firmness. “Blue light contributes to premature aging, pigmentation, eye damage, cataracts, cell shrinkage, wrinkles and photo damage,” adds Dr.
Is light therapy safe?
LED light therapy is a safe, relatively risk-free treatment. If you're thinking about buying an at-home mask or device, be sure it's marked “FDA cleared” or “FDA approved.” Also, wear eye protection, such as sunglasses or goggles, and carefully follow instructions to confirm you're using the device correctly.
What is the difference between red light and blue light therapy?
Red and blue light are at different wavelengths, and therefore have different effects on the skin. Where red light therapy helps at the surface level of the skin — stimulating collagen, reducing inflammation — blue light therapy penetrates the pores and eliminates bacteria.
How long does it take for actinic keratosis to become cancerous?
The length of time for an AK to progress to an SCC was determined to be 24.6 months (95% confidence interval, 21.04-28.16 months).
Does blue light therapy cause hyperpigmentation?
Blue light stimulates melanogenesis by acting directly on melanocytes. Blue light, and more precisely a stimulation with 415-nm light, induces hyperpigmentation of the skin. The pathway involved seems to be different from pigmentation induced by UVR.
What should you put on your face after blue light treatment?
If the treated area is on your face, wear a wide-brimmed hat. After 48 hours (2 days), continue to use a broad-spectrum sunscreen with an SPF of at least 30 on the treated area. If a scab forms on the treated area, don't remove or pick at it. Apply a moisturizer such as Aquaphor®, Vaseline®, or Cetaphil®.
How does a therapy light work?
Understanding a light box A light therapy box mimics outdoor light. It's thought that this type of light may cause a chemical change in the brain that lifts your mood and eases other symptoms of SAD , such as being tired most of the time and sleeping too much.
Does Bluelight remove spider veins?
Blue-light therapy may be more likely to work on smaller spider veins than larger varicose veins, but it may not have a noticeable effect. However, blue-light therapy has been shown to work as an acne treatment, so it may help people with other issues related to the appearance of the skin.
What is blue light treatment?
Blue light treatment for skin cancer. Blue light treatment is most often used as part of a treatment called photodynamic therapy . This therapy can treat some kinds of skin cancer and precancerous spots known as actinic keratoses. These reddish, scaly patches are caused by severe sun damage.
How does blue light affect skin?
However, blue light does have some side effects when it’s used with a photosensitizer as part of photodynamic therapy for skin cancer or sun damage: 1 Irritation: After treatment, your skin will probably be red and may feel slightly burned, like a sunburn. “You can apply a cool compress and use gentle moisturizing creams to help with the discomfort,” Dr. Benedetto advises. 2 Sun sensitivity: Your skin will be more sensitive to sunlight for two or three days, so skip the beach and rock your biggest hat. “It’s important to be really good about using sunscreen,” Dr. Benedetto says. 3 Peeling: Over the next week or so, the treated areas will flake or crust over, then peel away. You might feel a little like a lizard, but that peeling is a good thing: It leaves behind fresher, healthier skin.
Why is my skin so sensitive to blue light?
acnes, which lives on your skin. And P. acnes just so happens to emit its own photosensitizer, which makes it sensitive to blue wavelengths of light.
Is blue light good for skin cancer?
For patients with many years of sun damage, blue light can be a great tool for reducing skin cancer risk and improving the look of your skin — and that should leave you feeling anything but blue. Advertising Policy.
Does blue light kill acne?
Shining blue light onto acne-prone skin can kill the bacteria and clear up blemishes. But it’s not magic.
Does blue light cause dry skin?
When they’re used to treat acne, blue light treatments have few side effects, though some people might notice redness or dry skin.
Can I buy blue light for acne?
It’s possible to buy blue light devices to treat acne at home. But they may not be worth the investment. “I’d recommend having a dermatologist do it,” Dr. Benedetto says. Advertising Policy. And because not everyone’s acne responds to blue light, purchasing a device might be a waste of time and money.
What is blue light therapy?
What Does Blue Light Therapy Work for? Photodynamic therapy is used by oncologists, cosmetic surgeons, optometrists, and dermatologists. It’s especially helpful at treating multiple types of cancer, especially those with tumors or growths that lie close to the skin’s surface.
What is the effect of blue light on oxidative stress?
According to Loknath Chen, Associate Professor, Biotechnology Department, Mingchuan University, Taiwan, “Visible blue light irradiation triggers the natural photosensitizer molecules (curcumin or Flavin derivatives) to produce the reactive oxygen species (ROS) to increase the oxidative stress at local zone in a sort time.”.
How long does it take for blue light to fade?
Overall, Hu says, blue light therapy “is safe and well tolerated.” Most patients experience a temporary sensitivity to light following their treatment; however, this will fade within about six weeks.
How do doctors deliver blue light?
Some doctors have found their way around this problem by delivering blue light to the affected area through tiny fiber-optic cables or endoscopes. Using these methods, they’ve been able to target tissue in the lungs, stomach, and bladder, among other areas.
Can you do blue light therapy in the office?
Blue light therapy is so quick and easy that it can be performed in a doctor ’s office. Here’s what to expect: First, the doctor will apply a light-sensitizing agent (i.e. a liquid or cream) or intravenous drug (i.e. the photosensitizer mentioned above). Next, you wait.
Does blue light therapy help with jaundice?
Jaundice. Chinese researchers found that combining blue light therapy with a probiotic product known as bifico can significantly improve jaundice in babies and speed their recovery. Non-melanoma skin cancer. Psoriasis. Rickettsia. A bacterial infection transmitted through the bites of lice, mites, fleas, and ticks.
Can you use blue light therapy twice a day for candida?
A study published in the journal Lasers in Medical Science found that combining red light therapy with blue light therapy twice a day can successfully control candida). Chemotherapy side effects.
Who is the author of Gem Treatments?
An Introduction to Gem Treatments. Robert Weldon. As a consumer, you will regularly encounter in the marketplace gems that have been treated to change their appearance. A topic that often comes up is whether a particular gemstone is or isn’t treated. In a sense, humans alter all gem materials after they are found in the earth in order ...
Why is it necessary to disclose gems?
Because these treatments are not always apparent to the unpracticed eye, and are sometimes difficult to distinguish even by experts, it is necessary and legally required for anyone selling a gem (including consumer to consumer trade) to disclose the treatment procedure it may have received.
What is the chemical used to alter / reduce a component of, or the entire color, of a por
Bleaching. – a chemical used to alter / reduce a component of, or the entire color, of a porous gem. Some gemstones are bleached and then dyed, a form of “combination treatment.”. 1. The most commonly encountered bleached gems include:
Why do people alter gemstones?
In a sense, humans alter all gem materials after they are found in the earth in order to prepare them for use in jewelry. Natural gem crystals are transformed from their rough crystallographic form into the shapes, outlines, and degrees of polish in the gemstones that we appreciate and wear in jewelry.
How do diamonds change color?
Heating diamonds at high pressures and high temperatures can remove or lessen their brownish coloration so the gem becomes colorless. Other types of diamonds may be transformed from brown to yellow, orangy yellow and yellowish green, or to blue colors by this process.
Why are pearls bleached?
Pearls – All types of pearls are routinely bleached with hydrogen peroxide to lighten and improve their uniformity of color.
Can you remove dye from a gem?
Many dyes can be removed if the gem comes into contact with a solvent such as alcohol or acetone. Some dyes are unstable with exposure to the ultraviolet in sunlight and can fade over time. 3. Detectability –A qualified gemologist can detect dyed gems in most cases.
What is the saturation of blue?
Blue hues reach top saturation, or intensity, at medium-dark tones, about 85%. This is called the gamutlimit. Vivid saturation is an eye-popping color. Darker tones will appear inky or steely, while lighter tones may appear washed out or gray.
How do gemologists determine the color of a stone?
Gemologists assess color by considering hue, tone, and saturation. Gemstones often have a secondary hue in addition to a primary hue. For blue gemstones, common secondary hues are green and violet. In general, a more pure blue hue is desirable, and when a stone strays further from blue, it’s less valuable.
What color is the most popular for engagement rings?
By far the most popular blue gem for faceting, a blue sapphire can have very high saturation. Royal engagements have also made it one of the most popular choices for engagement rings! This September birthstone can occur in any color except red (which is ruby ), but its classic and most well-known hues are blue to violet. These hues arise from trace amounts of titanium and iron in the gem’s crystal structure. Sapphires often undergo a heat treatment, which improves their clarity and color.
Is aquamarine a dark color?
Known for watery blues and blue-greens, aquamarine never reaches the dark tones and high saturation of sapphires and tourmalines. Nevertheless, darker tones hold more value, even if the stone is somewhat gray. In the past, the beloved modern March birthstone was used as a talisman to keep sailors safe at sea.
Is blue a rare color?
Blue is one of the rarest colors in nature. Nevertheless, blue gemstones are always in demand for jewelry. While people have adorned themselves with blue stones for centuries, the quality and variety available today are unsurpassed. Read on to learn how to assess quality in blue gemstones, from popular and well-known species to rarely seen ...
Is blue diamond rare?
On the more expensive side, fancy colored blue diamonds are quite rare but have a beautiful brilliance and dispersion, or fire. Though naturally colored gems rarely reach high saturation, gems treated with irradiation and heat, or through the HPHT process, can have strong color with little gray. Lab-created diamonds may also be blue.
Is turquoise a blue gemstone?
Widespread in both inexpensive jewelry and designer pieces, turquoise is the most popular of blue gemstones. It ranges in hardness from 3 to 7.5, depending on the mineralogy of its host rock. Thus, some turquoise is highly resistant to scratching, but most will scratch easily. A December birthstone with ancient symbolism, turquoise is beloved by many. However, low-grade turquoise often undergoes stabilization or receives dye to intensify its color. Some imitations are even sold as reconstituted turquoise. Buyer beware.
What is the role of blue light in the retina?
It plays an important role in preventing blindness. Blue light can penetrate through lens to the retina and cause retinal photochemical damage. At present, there are relatively many studies on blue light's effects on the retina, but they are still being debated.
How does blue light affect the eye?
This high energy blue light passes through the cornea and lens to the retina causing diseases such as dry eye, cataract, age-related macular degeneration, even stimulating the brain, inhibiting melatonin secretion, and enhancing adrenocortical hormone production, which will destroy the hormonal balance and directly affect sleep quality. Therefore, the effect of Blu-rays on ocular is becoming an important concern for the future. We describe blue light's effects on eye tissues, summarize the research on eye injury and its physical prevention and medical treatment.
What is the first structure that light passes through?
The cornea lies at the front end of the eyeball and is the first structure that light encounters when passing through the eye. Some studies have shown that the survival rate of corneal epithelial cells after Blu-ray irradiation decreases, while blue light has been shown to increase reactive oxygen species (ROS) production in corneal epithelial cells, activates the ROS-nucleotide-binding domain, leucine-rich containing family, pyrin-domain containing-3 (NLRP3)-interleukin (IL)-1β signaling pathway, and trigger inflammation of human corneal epithelial cells (HCECs) induced by hyperosmotic pressure from NLRP3 and up-regulation of IL-1 beta secretion. Thus, mediated oxidative damage and apoptosis lead to further ocular inflammation and xerophthalmia formation[3]–[4]. Moreover, the oxidative damage caused by blue light was shown to be reduced by effective antioxidant extract associated-free radical elimination, thus improving the clinical symptoms of the eye surface in a dry eye mouse model[5]–[6]and further confirmed that blue light is associated with the formation of dry eye. Therefore, topical application of antioxidants can be used as a choice of drug option for blue light-induced dry eyes. Niwano et al[7]detected blue light's phototoxicity on corneal epithelial cells using an in vitrocell culture experiment. The results show that blue light in the near ultraviolet region may affect the mitotic phase of the corneal epithelial cells in a dose- and time-dependent manner. The microvilli on the epithelial layer of the corneal epithelium lose the support and stability of the tear film, leading to the formation dry eyes. However, blue light's effects on the cornea are not limited to corneal epithelial cells. Blue light irradiation also has a significant inhibitory effect on corneal stromal cell activity, which is also dependent on dose and time. Studies have shown that inhibitory effects may be related to the influence of blue light on corneal stromal cells autophagy. At the same time, Blu-ray irradiation is also used as a treatment for bacterial keratitis. The 440 nm wavelength blue light combined with riboflavin corneal cross-linking for bacterial keratitis demonstrates that blue light can effectively control the corneal ulcer caused by a Staphylococcus aureusinfection and is expected to be a treatment for refractory corneal ulcers in the future. The safety and long-term efficacy need to be further studied[8]–[9].
Is blue light harmful to the eyes?
Under what circumstances do we need protection from blue light? It is unscientific to equate all blue light as directly causing eye injury and unilaterally, and a certain degree of blue light can not only improve the control of dark room, slow the growth of eye axis, prevent the occurrence and development of myopia, and also regulate circadian rhythms[37]–[39]. In addition, as a reference to the most extensive standards set up for daily light intake, scientific research has shown that normal digital displays present minimal risks, and most of the displays are within the standard range, but this is only a conclusion with respect to short-term exposure. It is necessary for us to take a series of anti-Blu-ray measurements after long-term exposure. We should minimize the use of electronic devices at night and avoid the effect of blue light on the secretion of melatonin at night, so as to ensure good sleep and eye closure time[37]–[39]. In addition, when we use blue light rich product at night, the approved anti-blue light glasses or screen cover may be a good choice to avoid blue light-induced injury. According to the mechanism of blue light damage, we are able to use antioxidant base scavengers, enzyme activity protectors, and optic neuroprotective agents[8]–[9]for protecting our eye tissue, but the specific drugs and effects still need to be further studied.
What devices use blue light?
Computer and laptop screens, flat-screen televisions, cell phones, and tablets all use LED technologies with high amounts of blue light. Share on Pinterest. Blue light is part of the visible light spectrum. Too much blue light may damage retinal cells. Maya Chastain.
Why do we see blue light?
So do fluorescent and incandescent light bulbs. Human beings are exposed to more blue light than ever because of the widespread use of devices that rely on light-emitting diode (LED) technology.
What are the structures that protect the retina from light?
Your eye is equipped with structures that protect it from some kinds of light. Your cornea and lens protect the light-sensitive retina at the back of your eye from damaging UV rays, for example. Those structures don’t keep out blue light.
How long should you study objects with blue light?
While you’re using a device that emits blue light, stop every 20 minutes to focus on objects that are around 20 feet away. Study those objects for 20 seconds before you return to your up-close viewing.
How many hours a day do people use blue light?
Another 15.5 percent used the devices 12 to 14 hours a day — a sizable increase in screen time, probably due to changes in the way people work during the pandemic. So far, research does not appear to validate the concern about blue light eye damage. While some animal studies. Trusted Source.
Why does blue light disturb my sleep?
Researchers have found that when you’re exposed to blue light in the evening hours, your body doesn’t release as much melatonin, and your sleep cycle is delayed or disrupted. When blue light disturbs your sleep cycles. Trusted Source. , other problems can also develop: an elevated risk of hormone-related cancers.
Does blue light affect sleep?
While the jury is still out on the long-term effects of blue light on human eye health, there is more consensus around the effects blue light has on your sleep-wake cycle.
Why is blue light important?
Blue light helps regulate your circadian rhythm, or wake-and-sleep cycle. But watching TV or scrolling through social media too late at night can have the opposite effect. The blue light stimulates your brain, slowing or stopping release of the sleep hormone melatonin. That makes it harder to get a good night’s sleep.
How to avoid blue light?
You can’t avoid blue light completely, but there are ways to limit your exposure. They include: 1 Limiting screen time 2 Using screen filters to lower blue light exposure 3 Wearing blue light-blocking glasses, yellow-tinted computer glasses, or glasses with anti-reflective lenses
How does blue light affect the eye?
Each color in the visible light spectrum has a different wavelength and energy level. Blue light has shorter wavelengths and higher energy than other colors. Some research shows a link between eye damage and short-wave blue light with wavelengths between 415 and 455 nanometers.
What color light is the light that shines when the sun shines?
Violet. You may know them by the acronym ROY G BIV. Together, they make the white light you see when the sun -- the main source of blue light -- is shining. Fluorescent and LED (light-emitting diode) light bulbs also give off blue light.
Is blue light harmful?
In large amounts, high-energy light from the sun -- like ultraviolet rays and blue light -- can raise your risk of eye disease. That’s caused concerns about whether blue light from digital screens is harmful. More research is needed. Blue light helps regulate your circadian rhythm, or wake-and-sleep cycle.
How does bleach work?
Basically, the bleach opens pores in the tooth enamel to allow the agent to seep through to get to the dentin. At the internal dentin layer, the bleach’s oxygen molecules work to lift the discolored molecules from the dentin base, leaving the natural color behind.
How does bleaching teeth work?
The bleach works to alter the internal tooth color through a chemical and physical reaction.
How to speed up whitening?
The way that dentists have found to speed up this chemical whitening process is by using blue light. The blue light acts as a catalyst to increase the rate at which the chemical reaction occurs. This either allows the session to be shortened or for improved results in the same amount of time.
Does blue LED light change teeth color?
They also do not require a great deal of power and have long lives. Just like their UV counterparts, blue LED light alone does not change the color of the teeth. It must be used in conjunction with a hydrogen peroxide or carbamide peroxide bleaching solution.
Does UV light cause cancer?
This was a readily available light source on the blue light spectrum that demonstrated a strong catalytic ability. However, UV light has been shown to produce levels of radiation that are undesirable. Radiation causes cells to mutate, which is the foundation of cancer.
Is LED light carcinogenic?
The use of UV light in the oral application has been replaced by LED lights. Blue spectrum visible LED light has also been proven to provide a catalytic effect for chemical reactions without the added risk of radiation. LEDs have a few benefits over UV lights beside the fact that they are not carcinogenic.
Can you use blue light whitening at home?
While blue light aided teeth whitening used to only be a service offered in a professional office, there are now home kits that incorporate this catalyst device. A home whitening kit will never be as strong as what you can find in a dentist’s office. This is mostly to protect the patient from themselves.
