You can find two easy at-home blue light filter tests below to tell if your glasses block all blue light.įor better sleep, the entire blue light spectrum must be filtered out.
#BLUE LIGHT GLASSES BLACK HOW TO#
How to test blue light glasses for better sleepĪs for the best computer glasses, you can quickly see the difference in performance with an easy blue light glasses test. As seen in the picture below, a slight yellow tint will appear with the best computer glasses. When looking through the lenses towards a clear blue sky, you can more easily see this light being filtered away by the lenses.
The filtration is mostly at the start of the blue light spectrum, which is also called blue-violet light. Just wait for a clear day and hold your glasses towards the blue sky.ĭuring normal wear, the lenses look clear, but they actually have a slight yellow tint if filtering the recommended 30% of blue light. Perform the blue sky computer glasses blue light filter test So, make sure to buy yours from a reputable brand that can supply detailed lens data or a complete lens report. This means that any computer glasses cheaper than US$40 likely lack these essential features. Premium blue cut lenses that filter out the recommended 30% of all blue light and include anti-reflective coatings are costly to manufacture. To find out if a brand's blue light glasses are the best computer glasses you can get, you have to get some numbers from the companies' blue light filtering test data. Get the official blue light spectrum report data How to test blue light computer glasses (Clear lenses) 1. Red lenses can filter out the same amount of blue light as orange lenses, generally around 99.5–99.9%. Most of the extra light these filter out are in the safe yellow, orange, and red spectrum. They risk putting unnecessary strain on your eyes, comparable with using sunglasses indoors, so your eyes have to work hard to see anything. The issue with these deep dark red lenses is that they are hard to see through for negligible improvements for sleep compared to orange lenses. Red lenses are often marketed to be better for sleep improvement than orange lenses. Blue light blocking glasses for sleep – Red lenses Premium orange lenses for sleep block 99.5–99.9% of all blue light as well as a large amount of the green light spectrum, from 495 to 550 nm. A well-balanced lens for sleep filters out 100% of the most melatonin-disturbing light and is easy to see through.Ĭompared to yellow lenses, orange lenses are slightly darker, making them unsuitable for driving.
The best blue light glasses for sleep have orange lenses. Blue light glasses for better sleep – Orange lenses This means that this color lens fails to block out the blue light that affects your sleep hormone the most (460–480 nm). These generally block around 65–70% of blue light when benchmarked with a blue light test. With more and more cars coming out with LED light technology, this type of blue light glasses is highly recommended for driving at night.
Yellow blue light filter lenses are suitable to be used when driving at night.Ĭompared to the clear lenses, these are good at removing more of the highest energy blue light, around 440 nm, but are still clear enough to easily distinguish traffic lights and for driving at night.
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