Is It Necessary to Have Anti-blue Glasses?

Whether anti-blue glasses are necessary or not depends on your own situation. Because not everyone’s work requires a long time to use a mobile phone and computer. Therefore, whether it is necessary to wear anti blue light glasses, it depends on whether you face the electronic screen for a long time at work or study.

Some people have been talking about the high-energy blue light of electronic screens, which can cause eye fatigue and eyestrain, but there is no evidence that blue light can cause myopia. So is it necessary to have anti blue light blocking glasses? If people who have been staring at electronic screens for a long time are not equipped with anti blue radiation glasses, what impact will it have?

Although there is no evidence that blue light can directly cause myopia. However, from experiments with rats, chicks and macaques, blue light can indirectly lead to myopia by affecting other factors related to myopia.

At night, when you are playing with your mobile phone and staring at the mobile phone screen, blue light will always enter your eyes. During the day, the indoor and outdoor sunlight intensity is too strong, and the light enters the eyes to create a lot of heat. At night, when night falls and people sleep, it can eliminate the heat accumulated in the eyes during the day, reducing intraocular pressure.

However, at night, you always stay up late and stay up all night playing with your mobile phone. At this time, the blue light of the mobile phone screen is added to the eyes. Although the blue light intensity of the mobile phone is not as strong as the bright sun, since you play with the mobile phone for a long time, it will still cause a small increase in heat.

On the other hand, the presence of blue light in mobile phones will always stimulate the pineal gland under the brain and inhibit the secretion of melatonin. Melatonin is a hormone closely related to sleep. It is called the "sleeping hormone". The presence of blue light will keep the concentration of melatonin below the level required for sleep, causing us not to sleep well.

Since the sleep quality is not good, it is impossible to regulate the production of aqueous humor through cold contraction during sleep, dissipate the heat in the eye during the day, and reduce intraocular pressure.

Studies have shown that there is a positive correlation between intraocular pressure and eye axis and refractive power, that is, the higher the intraocular pressure, the longer the eye axis. When the intraocular pressure is high, it will swell, extending the length of the eye axis.

Both the eye axis and the intraocular pressure have a circadian rhythm. The intraocular pressure is high during the day and the eye axis becomes longer. At night, the intraocular pressure decreases and the eye axis becomes shorter. If we do not prevent blue light at night, the blue light of the mobile phone will always inhibit the secretion of melatonin, making us unable to sleep, and the intraocular pressure can not be reduced, causing the length of the eye axis shortened at night less than the length of the eye axis that is supported by high intraocular pressure during the day. For example, the eye axis is long by 0.02 during the day, and the intraocular pressure cannot be lowered at night because of poor sleep. Then it is only shortened by 0.01, which will cause the eye axis to slowly accumulate and grow, eventually leading to myopia.

Although blue light is not the only cause of insomnia, it must be the most important cause for insomniac people who stay up all night playing mobile phones. Therefore, it is very necessary for people who use the computer for a long time and stay up late at night playing with the mobile phone to wear a pair of anti blue radiation computer glasses.

Anti reflective blue light glasses can reduce the blue light that enters the eyes from the mobile phone screen. Without sufficient blue light, there is no way to inhibit the secretion of melatonin from the pineal gland. We can sleep well without causing the axis of the eye due to the problem of intraocular pressure.

Therefore, if you use a computer for a long time, it is necessary to wear blue light blocking glasses, but you cannot wear blue light glasses all the time.

Do you want to know more blue light lenses? Please contact us, we can provide you with the blue light computer glasses you need.