Have you ever realized that everyone currently is talking about blue light? There is a reason behind this. If you are reading this article on your laptop, smartphone, or any other device, your eyes are getting exposed to blue light. Well! This is the simplest explanation of blue light.
In our light spectrum, blue light is one of the colors whose exposure is more in our daily life. This blue light is emitted from our smartphones, laptops, and other screens. It is impossible to ignore screen time in today’s era, and here comes the role of blue light glasses. These glasses are introduced to reduce eye damage because of long hours of screen time.
What is blue light?
Blue light is not blue for naked eyes. It is a portion in our visible light spectrum with a wavelength of 400-500 nm. Our eyes can’t block these rays. Our eyes’ cornea and lens restrict UV rays and never allow them to reach the retina. But this is not the case with blue light. It passes such a structure and reaches our retina. Continuous exposure to such light can result in macular degeneration and may lead to digital eye strain.
How blue light can impact your lifestyle
Blue light changes our body clock. We get exposed to blue light while walking in the sunlight or working on laptops, smartphones, or other devices. Our brains link blue light with daytime; hence, if we are exposed to blue light at night, it becomes difficult to get sleep and wake up early in the morning. However, there is no definitive information about how much exposure to blue light can disturb our body cycle.
Why wear blue light glasses?
All the screen time results in digital eye strain. Blue light glasses block the transmission of a particular section of wavelength. Along with filtering, these lenses reduce the eye strain and circadian rhythm cycle disruption, thus help you in getting a good night’s sleep even after long screen time. These lenses usually comprise a light yellow tint, which blocks blue light and modulate wavelength.
Do we need blue light glasses?
Probably yes. Working for around 11 hours a day in front of computers can put your eyes under a lot of strain. Even if you have good eyesight, it is still better to wear blue light glasses while using digital devices. Digital screens are considered the significant source of blue light, especially the light which regulates our body’s sleeping pattern. With the digital device at night, we let our body know that it has to remain awake.
Before buying any blue light glasses, you can consult your doctor. Also, look for the blue glasses which have good reviews and a return policy. Such glasses are made to block the blue light coming from electronic devices with minimal side effects. Research is still going on to find out the effectiveness of these glasses, but still, these glasses can preserve your eyes health and prevent dry eyes.
As far as the usage of blue light glasses is concerned, the research is still going to know more about its suitability during screen time. But healthy habits like limiting exposure to blue light and taking regular breaks from the screen can avoid the condition of dry eyes caused by continuous exposure to blue light.
Also many doctors follow the 20/20/20 approach. This implies after every 20 minute of screen time you should look atleast 20 feet away for 20 seconds. This allows your eyes to come back to normal condition.