First of all, we need to know how visual fatigue and myopia are produced. If we ... Overuse your eyes? Will appear more or less? Visual fatigue? Symptoms, such as: visual impairment, short-term work or reading, temporary blurred vision or double vision; Eye discomfort, eye swelling, eye pain, dry eyes, burning eyes, tears, foreign body sensation in eyes and orbital pain. When the visual fatigue is not relieved for a long time and the ciliary muscles are disordered, accommodative myopia will be formed, which is what we call pseudomyopia. Pseudomyopia will develop into myopia if it is not treated and corrected for a long time. Entering the laboratory is an irreversible process and cannot be completely cured. You can only wear glasses and do laser surgery.
Secondly, we need to know what the so-called blue glasses are. Light can be divided into visible and invisible. Blue light refers to 400 -500 nanometers of visible light. Because of its short wavelength and strong energy, blue light in this wavelength range will increase the amount of toxins in the macular area of the eye, which will seriously threaten our fundus health if it is faced for a long time. Blue light with a peak value of 430-455 nm is the most harmful to retinal cells, while blue light with a peak value of 455-500 nm can regulate human biological clock and is beneficial to human body. Anti-blue glasses can really prevent some harmful blue light from hurting eyes for people who use electronic products for a long time. But it cannot be worn for a long time. Recently, many unqualified products have appeared in the inspection of anti-blue glasses. Due to the disorderly production caused by demand in recent years and the lag of market supervision, the blue-proof glasses seen on the market now are mixed, and their blue-proof effect cannot be guaranteed.
Finally, blue light blocking agent and blue light blocking film are the key raw materials to determine the blue light blocking performance. In order to save costs, some enterprises unilaterally lower the ex-factory price of products and use inferior raw materials. Unqualified anti-blue glasses not only fail to protect, but also have some problems such as color cast and poor definition. Long-term wearing can not only relieve eye fatigue, but also aggravate fatigue, leading to eye problems such as swelling and pain. If there is a real demand, you must buy anti-blue glasses and carefully screen them. Look at the refractive index of the lens, read the instructions, and check the anti-counterfeiting mark and anti-counterfeiting code of the lens to prevent buying fake and shoddy products, which is not worth the candle.