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I sometimes wonder if UV protective glasses block some possible benefit of UV light to eyes.
by etaioinshrdlu 4y ago
I sometimes wonder if UV protective glasses block some possible benefit of UV light to eyes.
- TheSpiceIsLife 4y agoI have often wondered this myself, but the dangers of UV light seem to be well documented, with no benefits. If you wear UV protective glasses most of the time you can almost elimate cataracts. The UV index here in southern Australia tends to be high to extreme most days during the warmer months, so I tend to wear UV protective sun glasses anytime I'm outside.
- InvaderFizz 4y agoI'm not sure there are any known benefits that outweigh the costs of UV exposure. That said, there is emerging research that the lack of NIR light is very detrimental to all kinds of health conditions[0]. Over the past two years, I've moved to ensuring that I get plenty of indirect sunlight. As NIR can go through most clothing and foliage produced shade, it's quite pleasant and relaxing to spend time in it. I also have large concerns with the move to thermal insulation efficiency that we now have. Indoor Air and quite easily become stagnant due to lack of outdoor exchange and the the low-emissivity glass used in high end windows block most NIR. Couple that with a lack of NIR emitters (incandescent is gone, camp fires are gone), and I think we are in for a world of hurt, even more so than today. Indoor Air quality can be mostly solved with use of ERVs to cycle the air with minimal energy loss. I'm not sure how you solve for low-emissivity glass other than not using it and designing your structure to limit direct sunlight exposure for the window itself and use shade/curtains/blinds for thermal control when needed. 0: https://doi.org/10.32794/mr11250016 https://doi.org/10.32794/mr11250016