First, the light is too strong, which stimulates and even hurts the cornea and retina of the human eye. . .
Second, light fluctuation, commonly known as stroboscopic, mainly refers to the frequency below 120Hz. Working and living in this light for a long time will lead to migraine and other diseases.
At present, the so-called blue light harm of led is mainly because the proportion of blue light of LED is relatively large (in terms of spectrum), while the proportion of others, such as halogen lamps, is much smaller. However, it does not mean that LED must have blue light hazard, and tungsten lamp must have no blue light hazard. Ultimately, it depends on the absolute amount of blue light of the two kinds of light.
Like pebbles, big stones, and a ton of pebbles falling, it is estimated that no one can stand it. Relatively speaking, big stones are safer.
I wonder if it's understandable.
To sum up, whether eye protection is really necessary needs to be measured and evaluated with scientific instruments, depending on the measurement results.