Anti-blue light glasses, as the name implies, prevent blue light from entering the eyes. Blue light is a common form of visible light found in life and in nature. The blue light referred to here is mainly short-wave blue light with a wavelength of 400nm-480nm, which is close to ultraviolet light, having a relatively high-level energy and can penetrate directly through the crystal to the retina at the base of the eye. Excessive blue light can lead to the decay of the retinal pigment epithelium, causing irreversible intensity damage.
Recent studies have also shown that: excessive blue light can cause macular degeneration of the retina; blue light can cause fundus damage after cataract surgery; blue light can trigger blurred vision and lead to VDT (video terminal) fatigue syndrome; blue light can trigger glare and reduce visual contrast; blue light can suppress melatonin production and disrupt sleep.
Blue light is everywhere. Outdoor blue light exists in natural light, whether it is sunny, cloudy or rainy; indoor energy-saving lamps, LCD monitors, mobile phones, tablet PCs, LCD TVs, etc. all contain a large amount of high-energy short-wave blue light. As more and more electronic products become popular and permeate all aspects of life, coupled with the fact that students are in a stage of intensive eye use, their exposure to blue light increasing a lot. harmful blue light can cause disruptions to the human biological clock or affect vision, so it is important to respond.
Preventing the harmful effects of blue light requires avoiding directly eye looking at the surface of the light source for long periods of time and reducing the amount of blue light entering the eyes, especially for children who are not aware of protecting their eyes. We can do as below instructed.
--Rational guidance for children to access the Internet and study, and develop good habits
--Adjusting children's diet to strengthen their immune system
--Eating more food containing lutein and vitamin A
--Reducing the brightness of light sources and warming the tones when watching TV or studying online
-- Reduce the amount of time spend with using eyes, especially avoid staring at light sources in dark places.
Of course, wearing anti-blue light glasses can protect your child's eyes more fully. Ordinary anti-radiation glasses only filter out UV rays and some electromagnetic radiation, but not blue light. Some special anti-blue light glasses not only effectively isolate UV rays and radiation, but also filter blue light. When looking at the computer or studying under LED light sources, they can greatly reduce the stimulation of blue light on the eyes, eliminate discomfort symptoms such as eye soreness, heat and pain, and relieve eye fatigue.
To better protect your eyes, you should also eat more vegetables and take supplements of lutein, multivitamins and zeaxanthin to strengthen the antioxidant capacity of your eyes.
