Blue light is harmless to eye health

Blue light is harmless to eye health

Amid the continuous debate over the harmful controversy over blue light, the paper of Nature, an international journal that says blue light is harmless to eye health, and the official position of the American Eye Society are drawing attention.

According to the report, the blue light does not directly affect eye health. They say that information that blue light causes eye diseases such as macular degeneration and dry eyes is wrong.

According to an article titled "Low-energized Light Bulbs, Computers, Tablets and the Blue Light Hazard" published in the journal Nature in 2016, and an official study by the American Academy of Sciences in 2017 showed that the research was conducted on electromagnetic fields.

Blue light is, in short, blue light in our eyes. It has a visible light spectrum that is between 400 and 500 nanometers and has shorter wavelengths and more energy than other visible light that appears to be red and yellow. Blue lights usually come from all electronic devices with screens, such as smartphones, TVs and computers. The reason why the sky looks blue is because of the blue light.

According to Nature magazine's thesis and the American Eye Society's 2017 position, "Bluelights exist in the sunlight we see every day and are much more than blue lights from exposed transfer electronics."

The power of blue light coming from smartphones is less than one-hundredth of one-thousandth of the blue light present in the blue sky, and we are exposed to the blue light that exists in the natural light every day, if it is harmful, we would have lost sight the moment we looked at the sky. It makes no sense that blue light causes eye disease.

Nor has the blue light proven to be the cause of macular degeneration. The macular degeneration, which occurs in about 6.4 percent of the elderly population, is a condition in which the macular rock located in the retina weakens with age, resulting in poor eyesight and even blindness.

The cause of macular degeneration is not certain, but age, family history and smoking are cited as the biggest risk factors, including high blood pressure, obesity and high cholesterol. There is no evidence that blue light is the main cause of risk factors such as age, family history, and smoking.

The same is true of eyeball dryness. "If you focus on the screen and everything for a long time, you won't blink, which makes your eyes dry and rough and tired," the American Anchorage Association said in its entry statement in 2018.

Blue light is not thought to be the cause of dry eyes, but if you focus on a monitor or a smartphone, the number of eye flickers decreases, which can worsen the dry eye condition of less tears or faster drying of eyes.