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The Effect of Blue Light on Your Eyesight

The Effect of Blue Light on Your Eyesight

Unless you’ve been living under a rock for the last ten years, you’ve probably heard at least a whisper of the harmful effects of blue light. Yet most people are a bit confused about exactly what that means for them, and what they can do to protect their health given the ever-widening availability of electronics and our increasing reliance on them at night as well as during the day.

So exactly what do blue light effects mean for you? Where does blue light come from? What toll does it take on the body, and what steps should you take to protect yourself against blue light today? Let’s take a quick dive into the scientific effects of blue light and how you can combat them.

Blue Light: An Unnatural Human Development

The human body was designed to wake and sleep at specific times. Our circadian rhythms, as they are called, govern when our bodies feel alert and when they shut down for the long resting period at night.

Circadian rhythms are not random. Since the dawn of time, people have been waking and sleeping according to the cycles of the sun. Our bodies have evolved over thousands – millions – of years to take cues from the presence and absence of the sun. The broad spectrum of light contained within the sun includes those of the blue wavelength, which signals that we should be wakeful. On the other hand, its absence sends us to sleep.

Why is this a problem? Because the recent development of electronics has introduced blue light, for the first time in human history, into the evening and nighttime hours. Never before have we received those “wake up!” signals at any time except when the sun was in the sky.

Multiple Harmful Effects of Blue Light

Blue light has been shown in multiple studies to “produce alerting effects, suppress melatonin, and phase-shift the biological clock.” In other words, it wakes you up, blocks our sleepy-time hormones from working, and messes with our natural circadian rhythms. Those studies also show that nighttime eBook use reduces next-morning alertness compared to a print book, which has “important implications for understanding the impact of such technologies on sleep, performance, health, and safety.”

In other words, blue light does more than make us feel tired. Exactly what does it do? As Harvard Health reports, “Some studies suggest a link between exposure to light at night, such as working the night shift, to some types of cancer, diabetes, heart disease, and obesity.” This may be because we have successively higher blood sugar the later our sleep-wake cycles become.

And if you think our sleep isn’t that important, think again. Hundreds or, according to some figures, even thousands of deaths result each year from springtime daylight savings, in which we lose an hour of sleep.

It’s helpful to note that fire and candlelight contain no blue light, but are mostly in the red light wavelength. So while they may disrupt cycles slightly, they still allow our bodies to slip into nighttime mode.

What’s the Answer to Harmful Blue Light Effects?

Obviously, you know we wouldn’t spend all this time explaining the harmful effects to you if we didn’t have an answer. The solution to the potential downsides of blue light is really quite simple: shield your eyes to protect your body.

Specialized blue light blocking glasses can help you do that, filtering out the blue wavelengths from your devices without impacting the readability or utility of whatever is on the screen. That way, you can keep working or relaxing after the sun has gone down, without worrying about disrupting your circadian rhythms. Your body will still produce melatonin naturally and you will still get tired. It’s the best of both worlds, allowing you to live the life you want, without bringing on sleeplessness in the short term or health problems over the long haul. Considering the potentially devastating effects of living with blue light too long, it’s best to find a solution now.

Adlens’ UZOOM Screen Protect computer reading glasses do just that. Whether you currently are without eye protection or wear reading glasses, you will benefit from the safeguarding our glasses offer. These are perfect for computer users of any age, as well as night owls, business people who are frequently on red-eye flights, and any on-the-move mobile user who frequently looks at screens at night.

Plus, Adlens’ reading glasses are adjustable. Now you can do more than simply read using your glasses. We know that life exists at more than close range; you need to be able to see distance as well, so you can engage in all the rich activity life has to offer. Our spectacles offer such flexibility, giving you the protection that works up close as well as far away.

No longer do you need to worry about poor eyesight, computer eye strain, or damage to your health. We’ve got you covered. If you’d like to learn more, please get in touch with us at Adlens today or visit to shop our adjustable glasses. Your health is worth it.

  • Apr 10, 2018
  • Category: Article
  • Comments: 0
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