What are blue light glasses
Blue light glasses are glasses that can prevent blue light from irritating the eyes. Special anti-blue glasses can effectively isolate ultraviolet rays and radiation and can filter blue light, suitable for use when watching computers or TV phones.
Blue light glasses can effectively reduce the continuous damage of blue light to the eyes. Through the comparative test of the portable spectrum analyzer, after using the anti-blue light glasses, the intensity of blue light emitted by the mobile phone screen is effectively suppressed, reducing the harmful blue light to the eyes.
anti-blue light glasses mainly reflect harmful blue light through the surface coating of the lens, or add an anti-blue light factor through the lens base material to absorb the harmful blue light, thereby achieving the blocking of the harmful blue light and protecting the eyes.
Any anti-blue lens using film reflection technology, because it reflects harmful blue light, the surface of the lens will reflect blue light, and the anti-blue lens with substrate absorption technology will not reflect blue light.
What are the hazards of blue light
(1)Injury to the eyes: Harmful blue light has extremely high energy and can penetrate the lens directly to the retina, causing the atrophy or even death of retinal pigment epithelial cells. The death of light-sensitive cells will result in decreased vision or even complete loss of vision. This damage is irreversible. Blue light can also cause macular degeneration. The lens of the human eye will absorb part of the blue light and gradually become cloudy to form cataracts, and most of the blue light will penetrate the lens, especially children's lenses are clearer and cannot effectively resist the blue light, which is more likely to cause macular degeneration and cataracts.
(2)Asthenopia: Due to the short wavelength of blue light, the focus point does not fall on the center of the retina, but a little bit forward from the retina. To see clearly, the eyeballs will be in a state of tension for a long time, causing visual fatigue. Long-term visual fatigue may lead to symptoms such as deepening of myopia, double vision, ease of reading when reading, and inability to concentrate, which affects people’s learning and work efficiency.
(3) Sleep well: Blue light can inhibit the secretion of melatonin, which is an important hormone that affects sleep. Its known role is to promote sleep and regulate jet lag. This can also explain why playing with a mobile phone or tablet before going to bed can cause poor sleep quality or even difficulty falling asleep.
In order to make the image quality of various LED light-emitting display devices such as TVs, computers, PADs, and mobile phones brighter and more beautiful, manufacturers often increase the blue light intensity of the LED backlight. With the popularity of these electronic products and permeate all aspects of life, Everyone’s chances of exposure to blue light have increased dramatically. For ordinary people, blocking blue light for a long time is the most effective way to reduce damage, and using anti-blue glasses can effectively solve this. When choosing blue glasses, choose Lensmart glasses online!