There is increasing popularity of eyeglasses that claim to filter out blue light from computers, smartphones and tablets. These anti-radiation glasses ads claim to be highly effective in obstructing out harmful blue lights. The eye does not absorb as much blue light when they filter out light reflected from either the sun or electronic devices.
The concerns reportedly associated with blue light vary from dry eyes to digital eye pressure, interruption of the sleep cycle and even macular degeneration, causing individuals to lose some or all of their central vision. There is no evidence, however, that the nature or quantity of light emanating from computer screens is detrimental to the eyes.
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But then, for those of us who stare at a laptop 8-plus hours per day, do blue-light blocking glasses actually make a difference? The response is not as clear as a simple yes or no.
Doctors and researchers concentrate primarily on two problems resulting from our ever-growing screen time: electronic eye strain and sensitivity to blue light. Electronic or optical eye strain problems range from distorted vision and dry eyes to headaches and pain in the neck region. We also can expose our eyes to blue light waves from looking at our screens all day, which are assumed to be the cause of a number of health problems. There is contradictory information on how your eyes are affected by blue light penetration, but physicians and researchers agree that it affects your circadian rhythm.
So how does blue light affect our sleep?
The absence of light as the sun goes down signals our bodies to begin releasing melatonin, the hormone responsible for helping us fall asleep. The sun regulated our sleep patterns prior to the advent of artificial light. Yet today, during the day and through the night, we are exposed to light. Although exposure at nightfall to light waves limits our bodies’ synthesis of melatonin, blue light waves, in particular, can be very troubling because they keep us awake. Blue light, on the other hand, by affecting our normal circadian cycle, can help us solve sleep problems. For example, the Lumos mask incorporates light therapy to alleviate the symptoms of jet lag.
However, there is still a lot of contradictory information on just how detrimental (or not) blue light is.
And should you get a pair of anti-radiation glasses?
It depends on if you plan to make use of your phone after darkness or if you find it difficult to fall asleep. There is enough proof that the time our bodies generate melatonin is affected by blue light, so if you look at screens long after the sun sets, these glasses might help keep you from staying up for an extended period longer than you want. Some of these claims might also be due to the placebo effect.
While it is not 100% certain that anti-radiation glasses are all they claim to be, there is no harm in giving it a try.