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Old 10-21-2019, 05:56 PM   #21
AnotherCat
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Quote:
Originally Posted by FrustratedReader View Post
The LED lighting inherently has blue which is bad for the retina...
I won't bother pulling your whole thread to pieces but will just limit myself to your first claim. Apart from clarifying that point my doing so will demonstrate the ease with which much of the rest of your peddled claims can be dismissed as being very misleading.

It is absolute foolishness to claim that the blue in LED lighting is bad for the retina; if that was so then one had best never go outside because there the levels of the blue end of the spectrum are many times higher; Zeiss, for example, claim blue exposure from an outdoor overcast sky is around 30 times that from a typical LCD display. So, if using that estimate, thirty hours outside exposure to an overcast sky equates to 1 hour exposure to a typical LCD display. If there were to be macular damage from LCD/LED lighting then it pales into insignificance compared to that from normal environmental exposures.

Furthermore, exposure to natural light from the sky exposes one to UV levels which really are high enough to cause tissue damage as many suffers of prematurely aged skin or of skin cancer will tell you. Those high levels of UV are also implicated in eye diseases such as macular degeneration, cataracts and pinguecula, all of which are common especially in low latitudes and areas where skies are clear (such as in much of the Southern hemisphere). {EDIT: we know that UV levels in LCD/LED lighting are very low in comparison to that in natural outside light - we do not get sunburnt faces, or even a hint of that reading on tablets, phones, using PCs, watching TV, using LED light bulbs, etc.}

So if you are peddling fear of LCD/LED lighting because you have a fear of macular degeneration from it, and you were honest with yourself you would never go outside and allow yourself to be exposed to natural light from the sky. If you were honest to others you would also be telling them to stay out of natural outside light.

Last edited by AnotherCat; 10-21-2019 at 07:36 PM. Reason: As noted
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