Why should I wear blue light blocking glasses?
Why wear blue light blocking glasses? Do they really work?
There are different types of glasses for different purposes, some are to be used in the daytime to filter out and reduce the artificial blue light that you absorb while working at a computer screen.
The other type of blue light blocking glasses are designed to be worn in the evenings, to block out the majority of blue light to help natural melatonin production in the evenings for improved sleep markers.
The evidence so far is in early stages, but exposure to blue light after sunset has been shown to reduce the natural production of melatonin in comparison to individuals wearing blue light blocking glasses (1.)(2.).
Blue light has been shown to effectively inhibit the human body’s natural production of melatonin, the bodies natural sleep hormone.
The production of this hormone is vital for good quality sleep and duration. Essentially, blue light exposure in the evening tricks your body into thinking it is the daytime, which reduces your overall sleep quality as less melatonin is being produced by the body.
The idea is of these glasses is to protect your eyes from blue light after sunset, to help your body produce more melatonin naturally so that you can improve your sleep markers (3.)(4.).
Should I block blue light in the daytime?
If you’re working at a computer screen for more than 3 or 4 hours, you should consider wearing a pair of glasses that reflect and block around 40% of the blue light. These lenses are slightly tinted yellow, but they look clear.
If you’re walking around outside, it is best to get as much blue light exposure as you can through the daytime to your eyes and skin, as it can help improve mood, performance & sleep.
If you suffer from eye fatigue/ strain when working at a computer in general, you should consider buying some of these clear lens glasses.
How do I know which type of glasses to buy?
As with everything, you always want to purchase high quality products as most of the time they are the most effective.
When it comes to blocking blue light in the evening, you want to purchase glasses that have lenses that block up to 98% of blue & green light, as green light is also sleep disruptive.
Most blue light blocking glasses on the market around the world aren’t created to these specifications, so you need to find a company that has created a lens blocks out most of the blue & green light to help improve sleep (5.).
What percentage of blue light should my glasses block?
Be wary of buying off marketplaces such as ebay & amazon. Many have been tested & have often shown to only block around 50-80% of disruptive blue light.
In conclusion, if you’re using a computer though he day time for more than 3 or 4 hours, you should consider purchasing some glasses that filter out and reflect around 40-60% of blue light to help with eye strain and fatigue.
Everyone should consider looking into wearing red lens up to 98% blue and green light blocking glasses if they’re going to have screens on in the evening, to help stop their natural melatonin production being inhibited.
ZLEEPY® have created a Blue Light Blocking Glasses Duo 2 pack, which contain 2 pairs of high-quality acetate framed daytime & evening pair of glasses. The daytime pair have clear lenses that block out and reflect around 40% of blue light, the evening pair block out up to 98% of blue light, and 99% green light, to help with sleep & eye fatigue. You can see these glasses here.
