Excessive blue light exposure can permanently damage your eyes and retina
Device Emissions Before and After
Light Intensity from a Tablet
According to a recent study from the Vision Council, 70% of American adults who use computers and mobile devices experience problems including eye strain and headaches. Digital eye strain, also known as CVS (Computer Vision Syndrome), is caused by overexposure to digital devices, often after two or more hours in front of a screen.
Symptoms of Digital Eye Strain Include:
- Sore, tired and itching eyes
- Dry eyes
- Blurred or double vision
- Neck and Shoulder Pain
- Read More from the Mayo Clinic
The Blue Light Situation
Blue light, another name for high-energy visible (HEV) light in the blue and violet part of the spectrum, is a particularly intense light wave emitted by many modern electronics, including smartphones and computers. The area of concern is the UV range 200-380nm and HEV range 380-480nm. Long term implications are now being studied but the short-term impact of digital eye strain affects people on a daily basis
Blue Light has a Dark Side
Harvard Medical School recently released an article titled, Blue Light Has a Dark Side, outlining issues associated with blue light exposure from digital devices. According to the article, prolonged blue light exposure may lead to:
- Acute retinal injury
- Aging of the retina
- Age related macular degeneration
- Melatonin Suppression
High-Energy Visible (HEV) blue light reaches to the back of the retina
Study by: F. Behar-Cohen, C. Martinsons, F. Viénot, G. Zissis, A. Barlier-Salsi, J.P. Cesarini, O. Enouf, M. Garcia, S. Picaud, D. Attia
What are the areas of concern?
“Digital eye strain or Computer Vision Syndrome (CVS) is the physical discomfort felt after two or more hours in front of a digital screen and is associated with the close to mid-range distance of digital screens, including desktop and laptop computers, tablets, e-readers and cell phones. Read more.”
“Light at night is bad for your health, and exposure to blue light emitted by electronics and energy-efficient lightbulbs may be especially so. Until the advent of artificial lighting, the sun was the major source of lighting, and people spent their evenings in (relative) darkness.. Read more.”
“Studies have shown that the deeper blue light frequencies (similar to what we are exposed to with LED cool blue or even tablets and smartphones) are 50-80 times more efficient in causing photoreceptor death than green light. Read more.”
Computer Vision Syndrome (CVS)
More than 90% of adults spend more than two hours on computer, leading to eye strain. On average, person blinks 18 times per minute. Using screens causes blink rates to drop, resulting in dry, itchy or burning eyes. HEV light reaches deeper in the eye which may damage the retina. Research points to link between blue light and long term vision issues including AMD and cataracts. View the research.
Melatonin Suppression & Circadian Rhythm Impact
Blue light exposure association with acute retinal injury, aging of the retina, age related macular degeneration, melatonin suppression. Harvard study shows nighttime device exposure suppressing melatonin and disruption of circadian rhythm. View the research.
This is the first time the human population will be exposed to such substantial blue light. Such retinal exposure may induce macular degeneration, glaucoma neuropathy and circadian rhythm disruption. Although the white light generated from LEDs appears normal to human vision, a strong peak of blue light ranging from 460 to 500 nm is also emitted within the white light spectrum; this blue light corresponds to a known spectrum for retinal hazards. Studies have shown that deeper blue frequencies similar to what we are exposed to with LED from tablets and smartphones are 50-80 times more efficient in causing photoreceptor death than green light. View the research.
What the Medical Community is Saying About Eyesafe:
Dr. Rob Weinstock
My job includes taking people's eyes. Part of that includes protecting people from harmful rays of light and recommending products including Eyesafe to protect people's eyes from the potential impact of HEV coming from digital devices.
Dr. Bill Trattler
I see many patients everyday commenting that they have tired, dry and sore eyes. It turns out that device use is impacting how my patients are functioning, and we call these set of symptoms Computer Vision Syndrome. It's important that we pay attention to the impact of High-Energy Visible blue light and how it impacts patients.
Dr. Sheri Rowen
With the growing use of LED devices and the time people spend using these devices, we are concerned about the light output to our patients eyes and want to be sure that we can protect their vision for the rest of our lives which is why we recommend Eyesafe technology.
Dr. Chad Dockter
Having been an optometrist for the last twenty years, I've seen the growing use of digital devices and the impact it's having on people's eyes. That's why I have my children use Eyesafe products and recommend them to my patients.
Dr. Molly McDonald
We haven't seen the long term impact of what High-Energy Visible blue light is doing to ocular health. I recommend blue light protection to all my patients and Eyesafe technology is an easy and simple solution that is important to long term ocular health.
Dr. David Friess
With so much research evidence growing around the known and unknown eye and health impact due to digital device use and blue light exposure, I'm excited to recommend Eyesafe technology which can be used to selectively reduce digital UV and high-energy visible blue light.