“Lack of evidence such as the amount of blue light emitted by electronic products and correlation with disease”
Enter 2023.08.30 15:30 Hits 17 Enter 2023.08.30 15:30 Edit 2023.08.30 15:58 Hits 17
Amid ongoing controversy over the effectiveness of blue light blocking lenses, a recent study has found that blue light blocking glasses are not effective. [사진=게티이미지뱅크]With the use of digital electronic devices rapidly increasing, blue light blocking glasses have been treated as one of the essentials for eye protection.
Anyone who cares about their eyesight has probably heard of so-called ‘blue light blocking glasses’ made with blue light blocking lenses at least once. In particular, those with poor eyesight must have had a lot of experience deciding between normal lenses and blue light blocking lenses when fitting glasses. This is because blue light blocking lenses are a little more expensive. Even people with good eyesight often wear blue light blocking glasses when in front of a computer.
Then, should we wear blue light glasses unconditionally like many stereotypes? First of all, experts agree that there is a lack of scientific evidence that blue light has a great effect on deteriorating eye health. The correlation between the amount of blue light emitted from electronic products and disease has not yet been proven.
Severance Hospital Ophthalmology Professor Bae Hyung-won said, “There are research results that show that blue light itself has a negative effect on retinal ganglion cells or photoreceptors, but this result may not be the same in clinical studies.”
“There is a lack of objective information that has been revealed through clinical studies on how badly blue light can affect our eyes.” no,” he said.
Blue light is blue light with a wavelength of 380 to 500 nm, and is visible light that can be recognized by the human eye. Blue light exists not only in electronic devices, but also in natural light such as the blue sky.
Professor Bae said, “Blue light exists in natural light,” and “there is nothing wrong with wearing blue light blocking glasses, but it is not essential, and there is no need to obsess over wearing them.”
Recently, a study has shown that wearing blue light blocking glasses while working on a computer has no effect on improving eye fatigue. According to a research team led by Professor Laura Downey of the University of Melbourne in Australia, there was no significant difference in visual fatigue between people wearing blue light blocking lenses and regular lenses.
The research team explains that the effect of blue light blocking lenses is insignificant because the amount of blue light our eyes receive from a computer screen is only 1/1000 of the amount received from sunlight.
The research team said, “Blue light blocking lenses do not reduce eye strain when working on a computer, etc.”
Experts point out that it is wiser to change your lifestyle in everyday life to keep your eyes healthy. Even if you wear blue light blocking glasses, you should avoid activities such as using electronic devices for a long time or doing outdoor activities without protecting your eyes on days with a high UV index.
Kim Eung-kwon, emeritus professor of ophthalmology at Yonsei University School of Medicine, said, “To keep eye health, we need to be careful of ‘ultraviolet rays’ that are easily overlooked.
2023-08-30 06:33:49
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