Overview
In this digital era, harmful blue light is everywhere
Until the advent of artificial lighting, the sun was the major source of blue light. However, along with the growth of technology, LED
screens are now becoming the number one source of blue light.
How to Protect Your Eyes From the Negative Effects of Digital Devices and Blue Light
July 24, 2014 Huffington Post
What is blue light？
Visible light covers the range from 380 nm to 780 nm and UV light falls just beyond the shorter end of the visible spectrum, so it's
invisible to the human eye.
Blue light, which is part of the visible light spectrum, reaches deeper into the eye and its cumulative effect can cause damage to the
retina. Furthermore, in certain wavelengths, blue light is implicated in the development of age-related macular degeneration (AMD).
The amount of exposure to blue light varies, depending on the time of day, the location and the season. The average proportion of
blue light that's found in sunlight during the day is between 25% to 30%. Even on a cloudy day, up to 80% of the sun's UV rays can
pass through the clouds.
Blue light has a dark side
May, 2012 Harvard Health Publications
Blue light retinal injury
Blue light contributes about 90% of the risk of photochemical retinal damage from fluorescent lamps and sunlight, which is why the
term "blue light hazard" is used to describe this risk. When blue light is absorbed by retinal tissue it induces oxidative stress and the
causes the formation of indigestible debris which accumulates in the outer retina. The cumulative effect of chronic, sub-lethal
oxidative retinal stress and the accumulation of oxidative debris in the outer retina contributes to the development of AMD.
Smartphone overuse may 'damage' eyes, say opticians
March 28, 2014 BBC
What is the macular?
The macular is an oval-shaped pigmented area near the center of the retina of the human eye. It has a diameter of around 5.5 mm.
The macular is responsible for focusing central vision in the eye, and it controls our ability to read, drive a car, recognize faces or
colors, and see objects in fine detail.
Macula of retina
Wikipedia
Macular degeneration is not curable
In ophthalmology, blue light is a high-frequency light in the violet/blue band from 400nm to 500nm in the visible spectrum. Frequent
exposure to it can easily cause macular degeneration, which cause permanent damages that can potentially leas to blindness. UV
rays, which range from 300nm to 400nm, are the leading cause of eye maladies such as cataract.
What is Macular Degeneration?
American Macular Degeneration Foundation
Medical studies prove that blue light to increased risk for cancer
Study after study has linked working the night shift and exposure to light at night to several types of cancer (breast, prostate), diabetes,
heart disease, and obesity. It's not exactly clear why nighttime light exposure seems to be so bad for us. But we do know that exposure
to light suppresses the secretion of melatonin, a hormone that influences circadian rhythms, and there's some experimental evidence
(it's very preliminary) that lower melatonin levels might explain the association with cancer.
Even dim light can interfere with a person's circadian rhythm and melatonin secretion. A mere eight lux - a level of brightness
exceeded by most table lamps and about twice that of a night light—has an effect, notes Stephen Lockley, a Harvard sleep researcher.
Light at night is part of the reason so many people don't get enough sleep, says Lockley, and researchers have linked short sleep to
increased risk for depression, as well as diabetes and cardiovascular problems.
Prostate cancer risk may be reduced by melatonin
January 20, 2014 Medical News Today
Blocking off blue light effectively
prevent myopia caused by blue light
Filtering 100% of high-frequency blue light ranging from 380nm to 410nm & 60% of blue light ranging from 420nm to 450nm.
Completely filtering out the high-frequency blue light prevents retinal damage.
Mobile phone and tablet screens ‘damage eyesight’
Sep 10, 2013 METRO
Protect your skin: prevent the precipitation of melanin
Light rays from monitors are pretty much equivalent to sunlight in the day time. Studies show that using the brightest setting on
monitor screens for 3 hours is equivalent to being under the sun for 1 hour;which causes eye strain, dry skin, formation of
chloasma, freckles, as well as wrinkles.
General Considerations of Skin Pigmentation: Disturbances of Melanin Pigmentation
Journal of Investigative Dermatology
Exclusive technology for blocking off blue light
Using a special Exclusive technology, RetinaGuard transforms blue light ranging from 380nm to 420nm into less harmful light rays
that are above 420nm.
Using RetinaGuard anti-bluelight screen protectors to prevent eyes injuries.
RetinaGuard Anti-Blue Light Screen Protector: Protects Your Eyes and Devices!
RetinaGuard Anti-Blue Light Screen Protector: Protects Your Eyes and health!
RetinaGuard Anti-Blue Light Screen Protector: Protects Your Children's Eyes!
Groups at potential blue light harm
Children aged 0 - 12
Do you have children within the age range of 0 -12 in your household ? iPad are extremely harmful to children's eyes! In
comparison to an average adult, the lens layer is clearer in a child and weaker in the elderly. By default, both eyes structures
are prone to additional blue light exposure and therefore cause more harm.
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User testimony from Megan:
"As the number of learning apps available on the iPad continues to grow, I am becoming more and more concerned of my 3 year-old
son being addicted to playing on my tablet. On top of that, I am most concerned about his eyes. After a bit of a research on the
Internet, I purchased the anti-bluelight protective film from RetinaGuard to help protect the eyes of my son as well as my own. To
my pleasant surprise, the film does not affect the sensitivity of the touch screen and does not interfere with the colors of the
screen display. I am very thankful that such a product exists to help address the concerns of a worried mom."
Digital device use leads to eye strain, even in kids
July 2, 2014 USA TODAY
White collar workers aged 30 - 60
Study done by researchers at Harvard University indicates that using smart phones, tablets, or laptops prior to going to sleep throws
the body's biological clock, the circadian rhythm, out of rhythm. Professor Richard Funk, a famous German ophthalmologist, had his
report Blue Light can Seriously Threaten Retinal Neurons published by the European Journal of Neuroscience in August 2011.
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User testimony from Derrick:
"For my 60th birthday, my daughter bought me an anti-bluelight protective film from RetinaGuard. She is concerned that my cataract
condition will worsen from the contrast exposure to the the blue-light released by the LED screens. Since computers became such an
essential part of our lives, I have been looking at the computer screens for over 8 hours a day at work. After using the film for 2
months, I started noticing a significant difference. Earlier today, I bought another film for my wife!"
The Role of Blue Light in the Pathogenesis of AMD
May, 2003 Sunnex Biotechnologies
Facebook, Twitter, social media addicts
Staring at your smart phone, tablet, or computer monitor for long period of time is basically asking for cataract!
Harm to retina caused by light rays is 10 times more than in the past because of the way we live our lives now.
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User testimony from Lisa:
"I am constantly using my phone. I use it to check my email, chat with my friends, surf the net, play games, and do work on-the-go.
Constant usage of my phone in different settings and environment is honestly killing my eyes. Came across to RetinaGuard on a blog,
learned that it effectively blocks off 90% of the most harmful bluelight and thus will help prevent sore eyes as well as cataract caused
by LES screens. Bought one to give it a try and started noticing a significant difference after a week or so. Now days, my eyes are no
longer sore from tiredness all the time. I am especially pleased by its easy application and how provides a flawless touch screen
accuracy. Since it does not affect the color display of my screen, I bought one for my iPads as well. Better safe than sorry is what I
am saying!"
What is the blue light from our screens really doing to our eyes?
September 1, 2014 GIGAOM
Blue Light is more harmful to those already with myopia
For those that are already victims of myopia, staring at monitor screen for an extended period of time creates an even higher risk of
cataract. Frequent usage of 3C products will increase the again of your eyes. Through frequent usage of 3C products, for example,
by the time you are 30 years old, your eyes may resemble that of a 70 years old person.
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User testimony from Jeff:
"After learning about the damages that blue light can do your eyes from a news article, I immediately started my quest on finding an
item to protect my eyes. After all, I am already a victim of serious near-sightedness, must do what I can to prevent going blend.
Noticed good reviews for RetinaGuard so I bought one for my phone as well as one for my tablet. Now my eyes are no longer watery
from being tired all the time."
Mobile phone and tablet screens ‘damage eyesight’
Sep 10, 2013 METRO
RetinaGuard bluelight testing
Testing Condition
1. Products being tested (from left to right): normal protective film, RetinaGuard anti-bluelight film, and normal privacy protective film.
2. Using a UV400 bluelight source to test the protective films from a distance of 15cm. Note: Research shows that the distance
in between one's eyes and one's cell phone screen averages to about 15cm.
Bluelight Blockage Testing
Using a UV400 bluelight source on the normal protective film, RetinaGuard anti-bluelight film, and normal privacy protective film.
Compared the results (as shown in the pictures above) and noted that RetinaGuard anti-bluelight film has the ability to block off
much more bluelight.
UV400 Bluelight Illuminate
Illuminate with the UV400 bluelight to demonstrate that RetinaGuard anti-bluelight film can much effectively block off the bluelight
in comparison to the normal protective film or the normal privacy protective film.
RetinaGuard Total Defense
RetinaGuard Professional Test
