Not all sunglasses can protect your eyes

2021/09/13

Summer is coming, many people are accustomed to wearing a pair of sunglasses to block the dazzling sunlight, but not all sunglasses can protect the eyes. Wearing sunglasses is a better way to protect your eyes from UV damage, but you must pay special attention to the choice of sunglasses, otherwise it will promote growth. Ray-Ban RB4222 Men's Sunglasses 865/13 Tortoiseshell/Lens Tea Sunglasses What are the differences? The study shows that different styles of sunglasses have great differences in the degree of blocking the glare stimulation. As far as the scale is concerned, it can be appropriately larger when selecting. Most travel sunglasses have no luminosity and are not restricted by the inter-pupillary distance. A slightly larger mirror can make the field of view more open, but also make the weight of the glasses arm spread evenly on the ears and bridge of the nose. Generally speaking, travel glasses should be 4-6 mm larger than usual glasses. In terms of color, dark-colored sunglasses can effectively block strong light, and their transmittance in the visible light region may be as long as 10%-30%, while the transmittance of light-colored sunglasses in the visible light region is usually 40%-80% (usually The transmittance of colorless glasses in the visible light region can usually reach 90%-99%). Sunglasses of different colors should have the same effect of blocking ultraviolet rays, and there will be no difference due to the color depth. YC9711 Men’s Sunglasses C1 Black/Colorful Red Learn to choose sunglasses. Wearing dark-colored glasses will make your eyes in a darkroom environment. In a dim environment, your eyes will actively expand the pupils. Long-term pupil expansion can easily lead to glaucoma and other diseases; Sunglasses will also cause more ultraviolet rays to penetrate into the eyes, which can easily lead to diseases such as cataracts, solar keratitis, corneal endothelial damage and macular degeneration. When selecting, pay attention to the appearance of the lens to be lubricated, free of wear marks and air bubbles, lay the lens flat, and look up from the horizontal direction without warpage. You can take the sunglasses 45 cm away from your eyes, observe the vertical and horizontal lines around you through the glasses, such as window frames or door frames, and then move the glasses up and down. If there is any distortion or swing in the straight line, it should be explained that the lens is deformed and not suitable for purchase. Lenses that are uneven or have marks or bubbles will cause discomfort such as dizziness after wearing them, so they are not suitable for purchase. YC9709 Ladies Sunglasses C2 Black/Lens Colorful Blue Next, you should pay attention to the color of the lens. To protect the eyes from infrared and ultraviolet radiation, the color of the glasses should have sufficient depth. Usually dark gray is best, dark brown and black are the next, blue and purple are the worst, because these two lenses will transmit more ultraviolet rays. Try not to use yellow, orange and light red. In order to avoid the excessive stimulation of sunlight to children's eyes, children can wear sunglasses. However, some parents casually buy a pair of sunglasses for their children. The children feel very unique and happy after wearing them. They don't know that this may put their children into amblyopia. Experts recommend that children should not wear dark sunglasses for a long time to avoid affecting their visual development and causing amblyopia; and, don’t wear unchecked sunglasses for children. Related Reading: Sunglasses Polarized Myopia Sunglasses
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