RE: Just finished reading Gary Barlow A Better Me...1 May 2022 15:12
5.0 out of 5 stars A+++ from a Professional Standpoint
Reviewed in the United States on 4 May 2018
Colour Name: BlackVerified Purchase
Speaking as a medical doctor specializing in Neuropsychiatry I must say that the Spectra479 Blue Blocking Amber Glasses are the most effective lenses at supporting regulation of a person's biorhythmic circadian rhythm. I've evaluated and tested many glasses, claiming to block actual destructive 450- 510nm blue light using both scientific and personal evaluations.
As skeptical as most people are, these are not just Amber/ Orange cheap colored lenses. Through thorough testing of these lenses using both a Blue Light Pass Filter, and a Photodiode Transconductance Amplifier recorded measurements were analyzed detailing penetrating wavelength histogram levels of reflectivity and some refractive light, LUX, and color temperature. I have found these glasses to live up to their claim of accurately blocking the most critical wavelengths 490nm - 510nm with an overlap over lower wavelengths which ARE CRITICAL!
Blocking high-end blue light helps with melatonin production, but Orexin-A and adenosine breaks s down and suppress its function. Melatonin suppressing glasses work by eliminating the specific spectrum of blue light. Unfortunately, this is only 1/3 the problem. During dark hours there are other factors of biorhythmic circadian regulations. Second to melatonin secretion from the pineal gland are hypothalamic Orexin hormones, which act in reverse. When refractive light at lower wavelengths enter the eye, specific neurons at the level of the optic-chasm trigger the release of a hormone (Orexin-A mainly) which tells our brains to stay awake/alert instead of entering a nocturnal state. Circulating
Adenosine inhibits the response to melatonin receptors that act on the brains frontal lobe also contributing to insomnia. By covering a broader spectrum of blue’s beyond the 450nm-510nm range not only induces the production and secretion of melatonin from the pineal gland, but it also suppresses the actions of Orexin hormones and aid in the destruction of circulating adenosine (a third contributing hormone responsible for increased brain activity).
To make a long story short, I have tried the “Popular celebrity” brand and over ten other brands. As some may have claims of blocking blue light, they have not passed spectrometry tests for the blue light that efficiently cover the most influential wavelengths.
Wearing these glasses may be awkward at first, you’ll notice that it’s not possible to identify any range of the color blue as opposed to the competition. The human brain is a phenomenal piece of machinery that adapts to odd situations. Give the glasses some time, and you will adjust to the light. I have not seen these specifications anywhere else on the market. I HIGHLY RECOMMEND THESE!!
I am in NO WAY affiliated, associated, or compensated for this review. This review is solely written with NO influences. It
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