Are Anti-blue Glasses Useful for Protecting Eyesight?

In the electronic age, we cannot get rid of mobile phone screens and computer screens. More and more people are attacked by video terminal syndromes, such as dry eyes, fatigue, eye pain, and decreased vision. Therefore, anti blue light glasses have appeared on the market in recent years, which can prevent various eye problems caused by electronic screens.

Why Does Blue Light Hurt The Eyes?

Blue light refers to high-energy visible light with a wavelength of 400nm to 500nm. It is always present in nature and an important part of sunlight. It is ubiquitous in various white light sources. With the development of technology, we have been surrounded by blue light. For example, mobile phones, computers, IPads, and LED lights that are indispensable for our lives and work all have blue light.

Blue light hazard is defined as the possible damage to the retina caused by high-energy short-wavelength visible light. At very high intensity, blue light can cause damage to the retinal photosensitive pigment through photobiochemical reactions.

Studies have shown that long-term exposure of the eyes to high-intensity blue light can increase the amount of toxins in the macular area of the retina, causing damage to the fundus after cataract surgery, and aggravating visual fatigue, even causing VDT (Visual Display Terminal) syndrome. At the same time, this situation can also interfere with the secretion of melatonin and affect sleep.

Although blue light is harmful, it also benefits us humans. Because blue light can regulate our body's biological rhythms and help children complete refractive development, excessive protection is not advisable. Parents should be careful not to choose yellow lenses when choosing anti blue ray glasses, which completely shields blue light. Children will see chromatic aberrations and easily cause visual fatigue.

Can Anti-blue Glasses Be Worn All Day?

Studies have shown that blue light of 450nm～480nm can inhibit the secretion of melatonin, and moderate blue light can improve mood and improve the efficiency of study and work. Therefore, children can wear anti blue light eyeglasses when going online for a long time, and it is recommended to take them off when playing and resting. Teenagers and children who need to wear myopia can choose to wear two pairs of glasses, a pair of anti-blue light myopia, and a pair of ordinary myopia.

At What Age Can Children Wear Anti-blue Glasses?

From the perspective of age, it is recommended that children under 6 years old do not choose glasses with a high blocking rate of blue light. Because the color vision of children at this age is still in the stage of rapid development, a high blocking rate will affect the development of children's color vision. The suitable glasses for children are blue light blocking glasses for kids and anti radiation glasses for kids.

Can Anti-blue Eyes Slow Down The Development of Myopia?

Long-term, short-distance, high-intensity use of the eyes can cause blurred vision, eye discomfort, and visual fatigue. Asthenopia is one of the causes of myopia, but myopia is related to the abnormal visual function of the child's eyes, eating habits, physical factors and eye environment. Therefore, blue light protection glasses and anti glare blue light glasses can only be used as eye protection tools for video learning, and cannot be used as tools for myopia prevention and control.

How to Choose Anti-blue Light Lenses for Children?

In the selection of blue reflective lenses or anti blue ray lenses, unless you have an eye disease and need to choose a lens with a high blocking rate, it is recommended to choose a lens with a light background. Dark lenses will cause chromatic aberration. It is recommended that the transmittance of blue light lenses from 415nm to 445nm should be less than 80%, and the transmittance above 445nm should be greater than 80%.

Blue light filter glasses are not a panacea. Children can wear them when using electronic products, but they should also pay attention to correct eye use, rest intermittently, and insist on performing eye exercises at least twice a day.

The formation of myopia does not happen overnight. Preventing myopia requires the continuous efforts of each parents. If the child is nearsighted or has a tendency to be nearsighted, we must actively prevent and scientifically intervene.