If you’re looking to understand more about blocking blue light. You have come to the right place.
We’re assuming that you understand just how important sleep is
If you’d like a quick crash course on why sleep is important this article has some good summary points.
This one is also a great read
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What is blue light?
Daylight is made from all the colours of the rainbow – it’s known as full spectrum light. Daylight has high amounts of blue light and is also balanced by the other colours of the rainbow. As you can see from the chart below, blue light has wavelengths of 450-500nm in length. If you look at your sunglasses they’ll probably have a UV rating such as UV300. This means that your sunglasses effectively block the ultraviolet frequencies light from the sun with wavelengths smaller than 300nm.
If you look at the graphs below you’ll see that artificial light is very high in blue light. Older style incandescent light bulbs, candle light and halogen bulbs are quite low in the amount of blue light they emit. However, modern lighting such as LED lights in computers, TVs, ceiling lighting and fluorescent bulbs emit high levels of blue light.
When our eyes relay this blue light to our brains it signals to our brain that we are in daylight. It’s time to work, move, be alert, and active. This signal is relayed to our hormonal system, digestion system, and every other cell in the body. Exposure to artificial lighting during the day won’t confuse your brain, but when you are exposed to blue light at night time, your brain interprets this as daylight and increases your alertness.
This isn’t what you need if you’re looking to wind down and go to sleep
Artificial lighting is high in blue light
Exposure to blue light at night time signals to our body that it’s time to move and be alert, rather than allowing our bodies to wind down and prepare for sleep
How does blue light influence sleep and your body?
Why would your body produce sleep hormones when it thinks it’s day time?
Blue light can disrupt your body’s natural cycle (circadian rhythm) and can have a wide range of negative effects on your health
Exposure to blue light at night reduces melatonin levels (sleep hormone)
This can lead to difficulty in going to sleep and for sluggish starts in the morning - You get poor sleep quantity and quality
How Blue Light Effects You
Humans are designed to be alert during the day and sleep at night in the dark. Our daily habits and our bodily functions also revolve around the cycles of light and dark. Specific cells in the back of your eye (retina) are stimulated by light and help our body set up these cycles. These cells are stimulated by daylight and also by artificial blue light at night. These cells relay the light signal to specific parts of your brain and signal that it’s daytime. These signals help set up your circadian rhythms of your body. Think of circadian rhythms like your body’s clock which regulates your body’s function such and your digestive and hormonal system and many of your behaviours during the day. See the diagram across for circadian rhythms in the body.
Some of you may have experienced the symptoms of jet lag. When you arrive at your travel destination you feel sleepy in the day, and you’re hungry and wide awake at night. This is a disruption of your circadian rhythm. Exposure to artificial light can give you jet-lag like symptoms. Every cell and organ in your body has a circadian rhythm. Disrupting your circadian rhythm is stressful to your body and can negatively impact:
- Your hormonal system
- Physical performance
- Mental alertness
- Blood pressure
- Digestion
- Immune system function
- Body weight control
We’re Committed To Helping You Sleep better
Our Customers Success Stories
Committed To Helping You Sleep better
How to reduce blue light in your home to sleep better
Stumbling around in the dark to reduce your exposure to blue light is a poor option. Broken bones also aren’t good for your health 
Modern technology has given us the opportunity to artificially extend our daylight hours with lighting – but there is a price. Using old school incandescent light bulbs, candles, and red lights will reduce your exposure to blue light. Mobile phones, tablets, computers and TVs emit high levels of blue light. You can install blue light blocking apps on your devices to reduce blue light emissions. This article reviews some of the more popular apps used to block blue light. The effectiveness of these apps is debatable, but we’d recommend using them – they’re not perfoect, but they’re still worth using. However, this review article misses the point on why we need to block blue light – it’s not eye strain that’s the issue. The disruption of your circadian rhythm and your sleep is the real issue. If you need to use devices at night, look to reduce your exposure 2 hours before you go to sleep. If you need to work at night on your devices – you need to block blue light.
Dim Lights
Dim your lights and use soft coloured lighting at night
Avoid Blue Light
Use blue light blocking apps on your devices
Reduce Artifical Lights
Try and reduce exposure to artificial light 2 hours before bedtime
Why we made these glasses?
Dave Liow is a prolific health researcher, international presenter, and the founder of Holistic Movement Coach. When he understood the impact that blue light has on human health, he went searching for blue light blocking glasses to look after his own personal health. The idea of adding blue light blocking apps and filters for his home’s TVs and devices, and changing all his light bulbs wasn’t a cheap or easy option in his opinion. He went on the hunt to buy a good pair of blue light blocking glasses. He was more than disappointed with the poor-quality, bogus glasses being sold as blue light blocking glasses. Most manufacturers had no idea what light frequencies their lenses were blocking, couldn’t supply any technical specifications, and didn’t adhere to any standards of manufacturing. Most were gimmicks at best. To get a decent pair of lenses required ordering from the US for $99 USD before freight, or wearing something that looked like a welder’s mask. We worked with an optometry laboratory to design specific lab tested lenses with lenses and frames that adheres to NZ and Australian safety standards. Our first version sold out! We sold hundreds of pairs of glasses to happy customers. This is our second version (V 2.0) of our glasses.
We listened to our customer feedback and designed our V 2.0 frames wider to fit over prescription glasses.
It’s difficult and expensive to block blue light in your house.
The poor quality of most blue light glasses and cost of decent blue light blocking glasses was the driving force for us to make our own blue light blocking glasses
Our glasses are lab tested and adhere to NZ and Australian safety standards.
What to look for when you are buying
blue light blocking glasses
Why Choose Our Product
CERTIFICATIONS
Our glasses have the following standards:
AS/NZS 1067:2003 standard certified
EN ISO 12312-1:2013(A1:2015)
ANSI Z80.3: 2015
BLUE LIGHT BLOCKING
Check the transmission spectrum of glasses (how well your blue light blocking glasses block blue light). Don’t be surprised if the manufacturer doesn’t state this or won’t show any test data... our glasses block 97% of 500nm wave length light.
Do the glasses work?
Our glasses effectively filter out blue light
These are the glasses that we personally wear. If they didn’t work we wouldn’t bother wearing them let alone sell them.
See our “Do our blue light blocking glasses work”video. If you’re interested in the research that blue light blocking glasses have on melatonin levels see this video. Melatonin levels are higher at night when you wear blue light blocking glasses. This helps you sleep and repair your body. Melatonin levels are also lower in the morning after wearing blue light blocking glasses at night so you’re more alert and ready to start your day.
How to use Blue Light Blocking Glasses
Blue light blocking glasses should be worn once the sun goes down at night time. If you are exposed to artificial light the glasses will block blue light so your brain and body doesn’t get a light signal indicating that it’s daylight. This will help normalise your melatonin levels and circadian rhythms. Don’t wear these glasses during the day. Your body needs to be exposed to daylight and night time to set up circadian rhythms. Never drive in these glasses. Colours are altered, so your red and green traffic lights may not be easily to differentiate.
Depth perception is also altered with these glasses. Never drive in blue light blocking glasses.
Our V 2.0 blue light blocking glasses fit over the top of most prescription glasses. You’ll want to check the measurements we’ve provided below to ensure they will work for you. We did look at the option of manufacturing prescription blue light blocking glasses but it wasn’t cost effective as these glasses would retail over $400/pair. Kids can also wear blue light blocking glasses – just check the frame size above to see it will fit your child. Children’s melatonin levels seem to be even more affected by blue light at night than adults. We have had some amazing improvements in children’s sleeping with blue light blocking glasses – see our testimonials below. A developing child’s brain needs more sleep than an adult, so getting good quality sleep is super important.
We talked about the effects of jet lag earlier in this article. Travelling between time zones is the perfect time to wear your blue light blocking glasses. Putting on your blue light blocking glasses when it’s night in the country you are about to arrive in is a perfect way to help set up your body clock. If you’re in transit in airports with strong lighting you will love wearing your blue light blocking glasses.
In our opinion these glasses are an essential part of your travel kit
Wear blue light blocking glasses at night once the sun goes down
Never drive in blue light blocking glasses
Blue light blocking glasses can fit over the top of most prescription glasses
Kids can wear blue light blocking glasses
Blue light blocking glasses are great for travelling between time zones
Committed To Helping You Sleep Better
Our Customers' Success Stories
Testimonials
Client Reviews
Sleep is an essential training ingredient. My sleep is deeper and I feel better after wearing these glasses. Better sleep = better performance. It’s a no-brainer for me.
Want to talk to us more about blue light blocking glasses?
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