How do screen protectors affect our eyes?
dipos anti-bluelight screen protector
Blue light is a natural light color and a necessary component for the correct representation of colors on displays with LED technology.
During the day, the natural blue light increases our alertness, responsiveness and mood. The absorption of blue light via smartphones and tablets also has side effects such as eye fatigue, dry eyes, sleep disorders and deterioration in eyesight.
The eyes of children in particular should be protected from the harmful blue light rays from smartphones and tablets. Children's eyes are still developing and are therefore much more susceptible to damage from blue light.
Because smartphone and tablet technologies have only been around for a few years and previous generations have not used these technologies, no empirical values are available. The decisive question, which will probably only be answered in a few years, is how great is the practical damage caused by blue light. Protect your children and yourself from the blue light rays from your devices with a dipos anti-bluelight screen protector.
We would like to explain to you in detail what blue light is and why you should protect your children and yourself against blue light from your smartphone and tablet using a dipos anti-bluelight screen protector.
The dipos anti-bluelight screen protector is basically constructed in the same way, cut to a high quality and perfectly fitting as you know it from dipos screen protectors.
It is a crystal clear material that you practically cannot see while using it. We have added an effective blue light filter to this material and added 2 layers of the tried and tested "anti-shock functionality" that you are familiar with from so-called armored foils.
The properties of the anti-bluelight screen protector at a glance:
- 99% of the blue light radiation is filtered (380-400nm)
- 2 impact-absorbing layers (armored foil)
- Crystal clear view
- Scratch-resistant surface (3H pencil test)
- Bubble-free, antistatic attachment, can be removed at any time without leaving any residue
We offer this product e.g. Currently only available for project business in the B2B area. The minimum quantity (MOQ) is 100 square meters.
The blue light describes the natural energy-rich and visible light, which is more strongly scattered in the atmosphere than other wavelengths of the visible spectrum, e.g. the color of the cloudless sky. It is intensely contained in the direct sunlight of the blue day sky.
Blue light adjusts our biological, circadian rhythm (sleep-wake rhythm) to the day and lets us wake up.
If one deals more intensively with the scientific facts for the regulation of the so-called human biorhythm, blue light influences the effect and the interaction of three hormones:
- The melatonin (sleep hormone),
- the serotonin (happiness hormone) and
- the cortisol (stress hormone).
It should be emphasized that blue light actively inhibits the production and effects of the sleep hormone.
Blue light can also be found in numerous artificial light sources such as TVs, PCs, tablets, laptops, monitors and smartphones or cell phones.
Here, however, the blue color is not even perceived by the human eye, but rather the screen light is perceived as whitish.
Almost every digital screen now uses LED technology (Light Emitting Diode) for background lighting, because this produces brighter light and thus more colorful images in a more energy-efficient area.
The intensive use of these digital media poses a risk to the eyes and body that should not be underestimated.
What damage does blue light do?
There is limited scientific evidence to date regarding the dangers of blue light, but expert concern seems to be growing.
A study last year found that cultured retinal cells in a laboratory that were exposed to blue light were completely destroyed.
Under the influence of blue light, free oxygen radicals are created, which generate oxidative stress in the retina and can permanently damage or destroy the cells.
One study was funded by a lens manufacturer that makes blue light blocking lenses.
Light with a high blue content also influences the hormonal balance by reducing the sleep hormone and promoting the formation of the stress hormone.
What can make sense during the day becomes a serious health risk if there is excessive blue radiation in the evening and afternoon.
Disorders in the hormonal balance can favor lifestyle diseases such as cardiovascular disorders, immune and metabolic disorders, cancer, diabetes and many more.
The research group around Christian Cajochen (head of the Center for Chronobiology at the University of Basel) carried out a test with 13 healthy boys aged 15-17 years in the sleep laboratory in front of an LED screen enriched with blue light.
The young people either wore glasses with a window glass (no special function) or glasses with a blue filter.
Measurements of saliva (which can be used to measure hormones) showed that those with blue-filter glasses had more sleep hormones in their blood than those without.
Subjectively, those who were exposed to blue light felt more tired and less attentive than those who were protected from the radiation by means of blue light filter glasses.
Mariana Figueiro (Lighting Research Center New York), who also examined 13 healthy volunteers, came to similar results.
The study by the Lighting Research Center New York showed that working for two hours on a screen can reduce sleep hormone production by almost 25%; this is of course not a desirable effect if children and young people are to come to rest in the evening.
- Eye strain
- Dry eyes
- Intense blue light causes damage to the back of the eye - the retina (Dr. Kokkinakis); Macular degeneration (visual impairment) that may start too early in children
- sleep disorders
- Causing eye damage such as cataracts and macular degeneration
What harm does blue light cause, especially for children?
Because children's eyes are still developing, blue light is able to penetrate the retina much more efficiently and more directly (i.e. more aggressively).
Dr. Kokkinakis, a researcher in this field, fears that it will unfortunately not be until a few years later that we will recognize the serious problem for children's eyes; through the use of cell phones etc. will come.
Tablets and smartphones are already being given into the hands of 2-3 year old children without parents being sufficiently aware of the serious consequences this can have for the health of their children.
Parents want to create little space for themselves and keep the child happy when they go out to eat, shop and make medical appointments by passing on the small, handy “all-rounders” such as tablets and smartphones to their children.
As much as the blue wavelengths are of decisive positive importance in daylight, because they positively stimulate our attention, ability to react and mood; The artificial blue light from the digital devices is just as catastrophic in the evening or at night, because it disrupts the circadian rhythm / sleep-wake rhythm mentioned above.
The closer we hold the devices in front of our eyes in order to stare intensely at the displays, the less the eye blinks, the more intense the exposure and the higher the risk of possible damage to the eye.
This happens because we open our eyes much wider than z. B. when reading a book.
This leads to tense, sore, dry eyes and, as a result, headaches.
This also affects many young people, because in the evening when there is finally peace and quiet, they “just grab” a tablet or smartphone in bed to “text” friends or send selfies.
The tiredness that just pressed you into the pillow disappears when reading, wiping and typing.
The blue wavelength of the light that tablets, smartphones and laptops illuminate makes us lively.
We don't even notice the blue color; the screen light is perceived as whitish.
This light works like a caffeine effect. The sleep hormone melatonin, the "pointer" of the internal clock of every person, is released by the pineal gland in the brain when it is dark. However, brightness prevents this.
Blue light immediately signals: stay awake !!!!
Because of the distance from which it is used, television is rated as less problematic.
To ensure good eye health in children, there are a few things to keep in mind:
- Use blue light film for smartphones and tablets
- Let children play lots of outdoor games to take advantage of positive blue daylight and train the eye's distance vision; More and more myopia (myonia) is caused by staring at monitors
- Introduce limit of monitor usage (max 1 hour / day)
- Educating children about eye blinking and screen pauses
- Annual eye checks up to the age of 18
- Follow the 20-20-20 rule (get up every 20 minutes, look into the distance for 20 seconds and blink your eye 20 times.)
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