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Why is LED blue light harmful to human vision?

Why is LED blue light harmful to human vision?

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Medical experts have found that the most likely hazards caused by high-energy blue light are: aggravating the macular diseases of the retina, causing fundus damage after cataract surgery, causing blurred vision, causing visual fatigue and causing glare; in addition, Blu-ray is also It will inhibit the secretion of melatonin, disturb sleep, and increase the incidence of major diseases.

Studies have shown that LED light accelerates retinal aging and hurts the eyes

As early as 2010, the French National Food Safety, Environment and Labor Bureau (ADSES) issued a report. In this report, ADSES pointed out that cold LEDs and blue LEDs are harmful to the eyes and should be banned. These LEDs are mainly used for decoration, and their blue light intensity far exceeds that of natural lighting and traditional lighting. These high-intensity blue light can cause damage to the pigmented superficial surface and retinal sensory layer of the retina, thereby accelerating retinal aging and increasing the risk of macular degeneration.

The biggest victim of LED is children under 10 years of age. Children of this age have neither a opaque lens nor a macular pigment, and therefore lack resistance to blue light. In order to protect these children, ADSES recommends that the relevant departments re-examine the relevant regulations and strictly monitor the quality of LEDs. In addition, ADSES also advocates labeling LED related products to remind users of the hazards of LEDs. At the same time, people should try to avoid using white LEDs, avoiding direct view of their light, thus minimizing the harm of LEDs.

Ophthalmologist: High-energy blue light can cause irreversible damage to the eyes

Smartphones and tablets have entered thousands of households. The health hazards of these electronic products for young children are not just entertainment noise affecting hearing. Recently, at the symposium on 'focusing on children's eyesight protection from blue light protection' held in Shanghai, there is such a data showing that 66.6% of children aged 0-6 in China have been exposed to electronic products since the age of 4, every day. It takes 1.5-2 hours to play with a tablet or mobile phone. Ophthalmologists say that high-energy blue light can cause irreversible damage to the eyes.

Experiments show that after using electronic products for a long time, children obviously feel eye fatigue; their visual acuity has decreased to varying degrees. A child with normal vision, after half an hour of continuous use of the tablet, his level of vision rises on the eye chart by one row, indicating that vision is moving in the direction of myopia. The culprit causing the child's vision loss is actually the 'blue light' that is emitted from the LED display of computers, telephones and so on. Scientists have found that the degree of damage to blue eyes varies from age to age, from 80% to 90% at 6-19 years, from 60% to 70% at 20-39 years, and from 50% at 40-60 years. Li Junping, a clinical ophthalmologist at the University of Virginia in the United States, said that the damage of high-energy blue light is a chain reaction that first causes photo-sensitive cell death, causing macular degeneration of the retina, which in turn leads to a gradual decline or even complete loss of vision, and this damage is irreversible.

The visual cells in the human body, the visual cells, are sensitive to blue light, and high-intensity blue light causes damage to the visual cells. When older, the crystals will turn yellow with age. In fact, yellow can be part of the blue light. Children, sensitive to intense blue light, can cause damage to the visual cells, affect vision, cause vision loss, and even cause eye disease.

Through research, medical experts have found that the most harmful effects of high-energy blue light are mainly caused by: increased retinal macular disease, causing fundus damage after cataract surgery, causing visual blur, resulting in visual fatigue, causing glare; in addition, blue light It also inhibits the secretion of melatonin, disturbs sleep, and increases the incidence of major diseases.

Statistics show that from the advent of the first mobile phone in 1973 to the present, the first thing that more than 50% of the world's people blink in the morning is to pick up their mobile phones. The latest medical research shows that the background light source of tablet monitors and mobile phone screens contains abnormally high-energy blue light, which can directly penetrate the lens to reach the retina and damage the retina, especially increasing the chance of macular area lesions, and in severe cases, blindness! World Health Organization (WHO) The Eye Association has issued an orange warning: the potential hidden threat of blue radiation to humans will far exceed the destructiveness of Sudan red, melamine, SARS (SARS) and H1N1 viruses, invisibly devour human eyes.

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