Today, people spend more time in front of digital devices than ever before. Since digitalization has started to be included in all areas of our lives, there are almost no people who do not spend time in front of smartphones, tablets or television screens. According to surveys, adults spend about 6 hours and children 7 hours a day in front of these screens.
In addition, activities such as spending more time on social media, reading news and watching TV series, which are closely related to musculoskeletal structure and psychological health, increase screen time. As the exposure time increases, blue light negatively affects eye health. In the article, you can find detailed answers to the questions of what is blue light and what are the benefits of blue light glasses?
What Is Blue Light and How Does It Affect the Eyes?
In fact, blue light is ubiquitous. The blue light in the sun's rays is emitted by the screens of electronic devices and fluorescent lighting. It contains every color of sunlight. Each of these colors reflects a different energy level. For example, red light has a longer wavelength and emits less energy. Blue light, on the other hand, is the opposite of red light, has a shorter wavelength and emits more energy. While people are exposed to blue light the most outdoors, people are exposed to blue light indoors more than ever before. Exposure to the blue light emitted by screens significantly affects eye health.
Most people spend at least a few hours every day looking at a screen in their business and social life. The ideal solution to combat the negative effects of blue light is to wear blue light protection. Here are the main benefits of wearing blue light glasses:
Better Quality Sleep
Just as walking in the sunlight can help you feel stimulated, spending time in front of a screen before sleep can also make you feel alert. The short wavelength delays the secretion of the hormone melatonin, which the body naturally begins to secrete a few hours before sleep. Watching TV or using a tablet before sleep can delay the secretion of melatonin and make it difficult to fall asleep. If you cannot turn off your devices 1 or 2 hours before sleep, experts recommend using blue light glasses to sleep better.
Looking at the screen too much can make you feel stressed, or you may experience eye strain and muscle fatigue. Ergonomic arrangements can help reduce muscle soreness associated with sitting at a desk and looking at a screen all day. Blue light blocking glasses also help reduce eye strain. Blue light can cause eye strain, making it difficult to focus on the screen. Blue light glasses increase the contrast on the screen, making it easier to focus and, as a result, reduce eye strain.
The cornea and eye lenses are successful at blocking harmful UV light from reaching the retina. However, the cornea and eye lenses cannot block blue light. Blue light can enter the retina, causing permanent eye damage and increasing the risk of cataracts. Blue light glasses help protect eye health by preventing blue light from reaching the retina.
The negative effects of blue light can be avoided by reducing computer screens, reading a book instead of watching television, or limiting the use of tablets and phones. Nevertheless, if you cannot apply these precautions or if you have to spend most of the day looking at screens due to work, you can help protect your eye health by using blue light blocking glasses.
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Researchers state that the blue light emitted from the screens of devices such as phones, tablets and televisions causes the delay of the hormone melatonin which started secreting a couple of hours before bedtime. A study by the University of Houston found that participants who wore blue light glasses had a 58 percent increase in nighttime melatonin levels. However, doctors say that there is no clinical evidence that supports positive effects of using blue light glasses. Ophthalmologists state that the lack of high-quality clinical trials is the reason why the use of blue light blocking glasses has not been proven to reduce eye fatigue, improve sleep quality or protect from important eye diseases.
No, you can use blue light blocking glasses all day. These glasses have no side effects. Blue light lenses can be easily applied to the glasses you use on a daily basis. It is beneficial for eye health for people who have to look at the screens of devices such as phones, computers and televisions for a long time to wear blue light glasses.
In addition, you can have detailed information about choosing glasses for face shapes by reading our article titled The Best Glasses for Your Face Shape. See you on different topics...
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