Increasingly present in our day-to-day lives, screens expose us to blue light, a visible part of the electromagnetic spectrum. In fact, there are different types of light rays – some visible, such as blue light, and others invisible, such as ultraviolet or infra-red. When visible light rays enter the eyes, a message is sent to the brain which then interprets them as what we see.
Each ray in the light spectrum has a specific wavelength and a different colour. Characterised by a wavelength between 380 and 500 nanometres, blue light actually includes a range of colours from ‘blue-turquoise’ to ‘blue-violet’. Specialists tend to distinguish between ‘blue-turquoise’ which has an effect on the sleep/wake cycle, and ‘blue-violet’ which is harmful to eye health.
Many experts are sounding the alarm over the risks of too much exposure to blue light. It can have a number of effects on the body, particularly the eyes, with red eye, stinging, or a burning sensation among the common symptoms of excessive exposure to ‘blue-violet’ light. These symptoms indicate eye fatigue which is often accompanied by dry eye, headaches and migraine.
Excessive exposure to the ‘blue-turquoise’ light emitted by screens can also have an effect on the quality of our sleep as it stimulates the retina and disrupts the synthesis of melatonin. Often referred to as the ‘sleep hormone’, melatonin plays a key role in sleep-wake phases. Sleep problems such as falling asleep, insomnia, or difficulty waking up, can all be caused by the ‘blue-turquoise’ light emitted by our screens.
A number of scientific studies have investigated the long-term impact of blue light. Researchers believe that prolonged exposure could have irreversible effects on the eyes. It may cause premature ageing of the eyes and the development of vision problems, particularly age-related macular degeneration (AMD) and cataracts. This is why eye specialists are calling for better prevention against the risks of blue light.
While the best response would be to reduce our exposure to blue light, this is increasingly difficult given how screens now dominate daily life for many of us. Nonetheless, vision and sleep specialists do recommend cutting down our screen time and exposure to blue light as much as possible, particularly before going to bed. For a few years now, opticians have also been suggesting we wear blue light-blocking glasses to reduce the risks to our eyes.
Another way of protecting ourselves against the dangers of blue light is to boost the eyes’ defences with the aid of natural compounds. Lutein, for example, is a substance known to play a protective role in the retina. A yellow pigment from the carotenoid family, it works both as an ‘anti-blue light filter’ and an antioxidant. Other natural antioxidants, such as anthocyanosides from blueberries, also offer benefits in protecting eye tissue. Combining a selection of the best photo-protective agents, synergistic formulations such as OptiVision can also be used to prevent vision-related problems.
21 Days
Reliable delivery. Good product.
Viva
34 Days
Great service
cl
36 Days
Received product promptly and its early days but seems to have improved my daughters alertness.
Anandi
46 Days
Amazing, great product!
ALEX Sinclair
49 Days
Good products and Swift handling
Trusted
55 Days
I trust the company's products, the quality is trustworthy and the speed of delivery is also appreciated.
NAJIB Malaah
55 Days
This company is serious when it comes to serving it's customers. They are fast to send out the orders. Their site is great and easy. Also, they treat their return customers with great deals and discounts. Keep up the good work.
ABDULQADER Jehad
56 Days
I know frech ( level 3 of 6) and can read your messages, but since order are official documents I'd like to have this in english. Merci Ursula Mathes
Ursula Mathes
60 Days
Box was intact, content correct but delivery time was 12 days. I started to worry!
VIITANEN Esa
62 Days
The company has provided the required product efficiently with no complications.
OldBear
63 Days
Supersmart sell a lot of interesting stuff. More than jut the usual vitamins though they do all those as well. Ordering pretty straightforward - you may need to try a couple of times to get the offers to apply but they do work. I queried something and had a fairly quick sensible reply. Postage takes a couple if days but you do get good progress information. Very well packed. Bought from Supersmart a few times and will do so again.
AT Griffin
17 Days
On m'a mis bien.
cliente
20 Days
qualité des produits et services
denis riegel
21 Days
Nehme das Produkt noch zu kurz um eine Bewertung abgeben zu können
Ermelinde
22 Days
J'apprécie la facilité de navigation sur le site, le suivi des commandes, et bien sûr, la qualité des compléments alimentaires.
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