本帖最后由 jwoo 于 2015-6-6 00:41 编辑
这是一条著名的谣言及其变种。
中国的媒体特别喜欢断章取义、并以此拉来当作商品促销的依据。
目前所有能搜索到的所谓专业言论的源头是号称：德国著名眼科专家理查德芬克教授 2011年8月 欧洲神经科学杂志 题为《蓝光严重危害视网膜神经细胞》的文章。姑且不说这种翻译绝对是错误的。这篇文章的源头真实情况如下
可以查到European Journal of Neuroscience 在2011年8月 的volume 34 issue 4确实有这样一篇文章
Blue light stress in retinal neuronal (R28) cells is dependent on wavelength range and irradiance
它的概述是：
Abstract
The aim of our study was to elucidate the role of wavelength and irradiance in blue light retinal damage. We investigated the impact of blue light emitted from light-emitting diode (LED) modules with peaks at either 411 nm (half bandwidth 17 nm) or 470 nm (half bandwidth 25 nm) at defined irradiances of 0.6, 1.5 and 4.5 W/m2 for 411 nm and 4.5 W/m2 for 470 nm on retinal neuronal (R28) cells in vitro. We observed a reduction in metabolic activity and transmembrane potential of mitochondria when cells were irradiated at 411 nm at higher irradiances. Furthermore, production of mitochondrial superoxide radicals increased significantly when cells were irradiated with 411 nm light at 4.5 W/m2. In addition, such irradiation caused an activation of the antioxidative glutathion system. Using vital staining, flow cytometry and western blotting, we were able to show that apoptosis only took place when cells were exposed to 411 nm blue light at higher irradiances; necrosis was not observed. Enhanced caspase-3 cleavage product levels confirmed that this effect was dependent on light irradiance. Significant alterations of the above-mentioned parameters were not observed when cells were irradiated with 471 nm light despite a high irradiance of 4.5 W/m2, indicating that the cytotoxic effect of blue light is highly dependent on wavelength. The observed phenomena in R28 cells at 411 nm (4.5 W/m2) point to an apoptosis pathway elicited by direct mitochondrial damage and increased oxidative stress. Thus, light of 411 nm should act via impairment of mitochondrial function by compromising the metabolic situation of these retinal neuronal cells.
可见，根本没有那么骇人听闻、说蓝光有害完全是很扯淡的。他们研究的特定的有害，是有非常多的限制条件的、日常生活中各种蓝光波长都对人体足够无害。它所提到的辐照度，几乎不可能在日常生活中遇到。
就像说道紫外线的危害……导致皮肤烧伤、导致白内障等……那也得足够的辐照度啊！没有足够的辐照度……别说晒伤了……那是人体必须的。没有紫外线人都没法吸收钙、没法长个子好吧！
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