Do not choose such sunglasses

u003cbru003ePeople wear sunglasses have three functions: protect the eyes from ultraviolet rays, and cataract patients rely on glasses to reduce the irritation of visible light to the eyes, and reduce the damage of infrared rays to the fundus through the lens of the human eye. However, tinted glasses do not necessarily block ultraviolet rays. They can only be used as sunglasses when an anti-ultraviolet film is additionally coated on the lenses. YC9702 Ladies Sunglasses C3 Black/Lens Brilliant Blue Therefore, some inferior sunglasses can not block the penetration of ultraviolet rays, and the transmittance of the lenses is seriously low. The eyes look like in a dark room, causing the pupils to enlarge, and the residual ultraviolet rays will be emitted a lot. Into the eyes, damage the eyes and cause diseases such as solar keratitis, corneal endothelial damage, and macular degeneration of the fundus. Some sunglasses lenses that do not meet the standard have excessive diopter or the surface of the lens is not smooth, convex, prismatic interface, or even bubbles. When the eyes look at external objects, they will be distorted and deformed, which will make the eyeballs sore and cause nausea and appetite. Symptoms of visual fatigue such as decline, forgetfulness, and insomnia can easily lead to eye diseases such as vision loss and myopia if worn for a long time. YC9703 Women's Sunglasses C3 Black/Colorful Blue Therefore, you should go to professional optical shops and regular shops to choose sunglasses. In addition, people like red, red, green and green when choosing sunglasses, which is contrary to the light color advocated in medicine. In fact, brown, light green, etc. are the colors that are beneficial to the eyes. It should also be noted that darker-colored sunglasses reduce the ability of the eyes to distinguish colors and easily cause traffic accidents. YC9708 Universal Sunglasses C7 Black Frame Silver Legs/Lens Gray For the elderly and people with glaucoma or suspected glaucoma, it is necessary to minimize the time of wearing colored glasses. On the one hand, the aging and swelling of the lens of the elderly will cause the roots of the iris to accumulate when wearing dark glasses for a long time, which will hinder the outflow of aqueous humor and increase the intraocular pressure. For patients with glaucoma or suspected glaucoma, it is more likely to cause glaucoma attacks. On the other hand, the contrast sensitivity of glaucoma patients decreases, and dark glasses can aggravate the patient's blurred vision, thereby affecting vision. In addition, it is not suitable for children to wear sunglasses, because sunglasses will greatly reduce the light stimulation of children's retina, affect visual development, and even form amblyopia. Related Reading: Brand Sunglasses Sunglasses

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