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If you've ever found it difficult to switch off after being on your devices at night, or if you suffer from tired eyes after a long day staring at your computer screen, you're probably feeling the effects of overexposure to digital blue light. This is where blue light filtering technology comes into play. Blue light blocking glasses and sunglasses have a specially crafted lens that blocks out this glare from screens, so you can feel better, sleep better, and give those eyes the rest they deserve. Discover a range of blue light lenses in your favourite frames and shapes from top brands like Baxter Blue, Ray-Ban, Le Specs and more.
And how can glasses help?
Blue light is part of the visible light spectrum and is found in almost every light-generating source. There is a whole spectrum of wavelengths that determine how we perceive colour, some are invisible, and some are harmful like UVA and UVB. With the shortest wavelength and the highest energy, blue light can sway between harmful UV and healthy light consumption. Too much of anything can be harmful, and long hours of exposure to blue light from the sun and devices can cause your eyes to be dry, irritated and fatigued while disrupting your quality of sleep.
Blue light's purpose is to energise us, it exists naturally from the sun and regulates our circadian rhythm which tells our body when to wake up and when to go to sleep, blue light lifts your mood, supports memory and boosts your attention. Our eyes can handle the energy levels from the sun, however, overexposure to blue light from devices can cause an imbalance in our circadian rhythm which is why sleep patterns are disrupted.
These days, we've become so accustomed to doing everything from work and socialising on our devices that our eyes rarely get a break from the light emitted from our screens. We have illumination all around us that doesn't switch off until we go to bed, which causes our eyes to overconsume blue light, keeping us over-stimulated and alert for far longer than it should. This causes an imbalance in our body's circadian rythym and health production of melatonin which causes sleepiness. Because of this, you might wake up the next day and feel like you haven't had a deep sleep, or feeling the aftermath of waking up in the middle of the night and having trouble getting back to sleep. Good sleep is important and is the driving force behind leading a happy and healthy lifestyle. Breaking the cycle of blue light overexposure can be difficult, but it isn't impossible.
For most of us, cutting down screen time isn't a viable option. Fortunately, many eyewear brands recognise the importance of providing glasses and sunglasses with blue light filtering technology to assist in blocking out potentially harmful blue light. We recommend wearing blue light glasses when sitting in front of your computer, watching television at night or for those few hours when you may be on your phone before bedtime. For that extra bit of blue light protection when spending time outdoors, Baxter Blue has created a sunglass range that incorporates advanced blue light filtering technology, anti-reflective and polarised lenses to protect from glare, UVA & UVB exposure. There are other tips you can incorporate into your lifestyle to protect your eyes from eyestrain like taking regular breaks from the screen, dimming lights in your home or workspace and avoid using your phone for 30 minutes before you go to bed and after you wake up.