A 2019 report from the French Agency for Food, Environmental and Occupational Health and Safety (ANSES) warned of the “phototoxic effects” of blue light exposure, including an increased risk for age-related macular degeneration. Exposure to LED light with a blue peak in its emission spectrum may have a harmful effect on our health because the blue light suppresses the production of melatonin. Effects of blue light and sleep. However, Sparrow said that, generally, sunglasses block ultraviolet light, and those “that have a yellow tint should be preferred as they will also reduce the amount of blue light that reaches the retina.”. In addition, a stroboscopic affect in some LED lights—provoked by tiny fluctuations in electric current—can induce "headaches, visual fatigue and a higher risk of accidents," the report said. Verification email has been resent. The lead content in red LEDs is also to… A Warner Media Company. Also, make sure that your time spent under the light is minimal. Doctors issue warning about LED streetlights. One of the main concerns with LED lights relates to red LED lights, one of the oldest varieties still on the market. LED lights have been criticized by people who are worried they’ll cause damage to the retina of your eye. May 17, 2019 -- The blue light in LED lighting used in many consumer products may harm your sleep and pose a risk to your eyes, a new report warns.. They said LED lighting has worse nighttime glare and are intense enough to decrease visual acuity and safety. Light affects our body clocks and affects our sleeping patterns, and a lack of sleep is known to make us more susceptible to a range of health … Courtesy Fabio Falchi et al./AAAS. Like early fluorescent lighting systems, LED systems are prone to producing rapid flickering or stroboscopic effects, and this is a significant area of concern when it … While light of any kind can suppress the secretion of melatonin, blue light at night does so more powerfully. The retina “accumulates fluorescent molecules generally referred to as lipofuscin,” explained Sparrow, who was not involved in the ANSES report. Here’s an illuminating fact: the negative effects of using LED and blue lights at night can be both mental and physical, and they far outweigh any perceived benefits. “These compounds become more abundant with age and are sensitive to blue light.” Early evidence suggests that this light sensitivity may lead to unhealthy optical responses over the long term, she said. Ultra-high CRI LED lighting for home, residential and hospitality applications, Color-correct, full-spectrum tungsten and daylight light sources for film, cinema and still photo use, ISO-compliant D50 and D65 light sources for graphic arts and industrial applications, Bias lighting for color-critical digital arts and on-screen applications, Natural daylight spectrum provides accurate and consistent lighting conditions for graphic arts creation, Full-spectrum white light sources for maximum yield and growth quality, Flicker-free and full-spectrum light sources for improved health, energy and circdian well-being, True 365 nm ultraviolet LED products for fluorescence and curing applications, Browse our selection of articles and interactive tools. Janet Sparrow, a professor of ophthalmic sciences at Columbia University, wrote in an email that “blue light is thought to help individuals to maintain the daily rhythms that allow sleep.”. ANSES differentiates types of blue light in its report. However, other LED lighting sources, including the newest flashlights, car headlights and some toys, produce a whiter and “colder” blue light that is more harmful. A 2012 Spanish study found that LED radiation can cause irreversible damage to the retina. PHOTO: Harmful effects of LED lights. The DOE (Department of Energy) has determined that LED lighting is no more harmful than other light sources and that there is nothing to prevent the usage of LED … Blue light is known to stimulate the production a melanopsin, light bulb designed for circadian health in mind, truly flicker-free LED dimmers operate at 25,000 Hz or above, PWM dimmers with high frequencies < 25 kHz, The LED light intensity - placing a light bulb close to your face will expose you to a lot more blue light than sitting farther away from it, The length of time you are exposed to the LED light - the longer you are exposed to the blue light, the more significant the melanopsin production, The specific time of night you use the LED lights - exposure during early evening hours will have a much lower risk than exposure late at night just before going to bed. Browse our collection of articles, how-to's and guides on various lighting applications as well as in-depth color science articles. Everything you need to know and get started with flexible LED strips. This includes thermal and blue light analysis in the spectral range is 200nm to 3000nm. Harvard researchers and their colleagues conducted an experiment comparing the effects of 6.5 hours of exposure to blue light to exposure to green light of comparable brightness. Tosini noted that scientists are convinced that exposure to LED blue light in the range of 470 to 480 nanometers for a short to medium period (days to weeks) should not significantly increase the risk of eye disease, but the same is not necessarily true for long-term exposure (months to years). Today, LEDs are used for domestic purposes as well as industrial and commercial ones. These bulbs are usually labelled "warm white" but confirming the exact color temperature can be preferable. Age-related macular degeneration, a leading cause of vision loss among people over 50, causes damage to the macula, a small spot near the center of the retina that’s needed for sharp central vision. New scientific evidence confirms the “phototoxic effects” of short-term exposures to high-intensity blue light, as well as an increased risk of age-related macular degeneration after chronic exposure to lower-intensity sources, according to the French Agency for Food, Environmental and Occupational Health & Safety, known as ANSES. During the light cycle, spend as less time as possible under the LED lights in your grow tent. (CNN) The blue light in LED lighting that is increasingly used in our homes can damage the eye's retina while disturbing our biological and sleep rhythms, a French health authority warned in … But beware of the LED lights that emit UV lights, as they are harmful for the eyes and skin. Little wonder that many people complain of itchiness, redness in the eyes and mild headaches after continuous exposure to LED lights. Market penetration of LED lighting is increasing and will represent 48% of total lumen-hour sales by 2020 and 84% by 2030, the agency estimates. Improper disposal of LED lights can cause harmful effects to the environment and its surroundings. Mainly, people are concerned with any harmful effects they may have on our health overall. LEDs or light-emitting diodes consist of a semiconductor chip positioned on a reflective surface; when electricity runs through the semiconductor, light is produced. If a manufacturer provides it, look for the M/P ratio which provides information on the relative amount of blue light in a light's spectrum. Success! “There are blue light photoreceptors in the retina that directly communicate with the brain circadian clock,” Tosini, who was not involved in the ANSES report, wrote in an email. Recent news also states that excessive exposure to such light can also damage your retinas, causing conditions such as age-related macular degeneration. And old-fashioned lightbulbs produced some blue light, though less than what is emitted by energy-efficient curlicue (fluorescent) lightbulbs or LEDs. "Despite the energy efficiency benefits, some LED lights are harmful when used as street lighting," AMA Board Member Maya A. Babu, M.D., M.B.A. "The new AMA guidance encourages proper attention to optimal design and engineering features when converting to LED lighting that minimize detrimental health and environmental effects." For example, “warm white” domestic LED lighting has weak phototoxicity risks, similar to traditional lighting, according to ANSES. Perhaps you see some vertical lines in your smartphone camera shots, observed some strobing in moving objects, or simply ...Read More, The term "full spectrum light" gets used frequently, and oftentimes erroneously, as there is no single agreed upon definition. Plug in the dimensions of your space to find out! “It is true that exposure to light in the evening affect sleep and circadian rhythms mostly by inhibiting the synthesis of the sleep promoting hormone melatonin.”, Related Article Related Article An unrelated 2017 review of scientific studies also lends support to the finding in the ANSES report that sunglasses and filters may not protect us. CNN’s Barbara Wojazer contributed to this report.