Are The darker sunglasses, the better UV protection？
2022-03-25
In summer, sunglasses are one of the necessary sunscreen products for people to travel. Many people think that the darker the lens, the better it can prevent the damage of ultraviolet rays to the eyes. The ophthalmologist of Xinqiao Hospital of Third Military Medical University said that the darker the sunglasses, the better, and the darker lenses may cause damage to the eyes.
Yuan Rongdi, director of the Department of Ophthalmology, Xinqiao Hospital, Third Military Medical University, said that whether it can prevent ultraviolet rays has nothing to do with the color depth of the lens, but is determined by the UV (ultraviolet) standard of the lens. For example, UV400 lenses can prevent 100% of ultraviolet rays, while UV100 lenses Lenses protect from 96% to 98% of UV rays.
"Therefore, when choosing sunglasses, look at the UV standard of the lens, not the color depth." Yuan Rongdi reminded that even if it can prevent ultraviolet rays, it is not suitable to choose sunglasses with too dark color. Too dark lens color will seriously affect the visibility, and the eyes are easy to see. Stressed and damaged. The lenses of sunglasses should ensure that 30% of the light can pass through, with gray or green being the best.
Yuan Rongdi, director of the Department of Ophthalmology, Xinqiao Hospital, Third Military Medical University, said that whether it can prevent ultraviolet rays has nothing to do with the color depth of the lens, but is determined by the UV (ultraviolet) standard of the lens. For example, UV400 lenses can prevent 100% of ultraviolet rays, while UV100 lenses Lenses protect from 96% to 98% of UV rays.
"Therefore, when choosing sunglasses, look at the UV standard of the lens, not the color depth." Yuan Rongdi reminded that even if it can prevent ultraviolet rays, it is not suitable to choose sunglasses with too dark color. Too dark lens color will seriously affect the visibility, and the eyes are easy to see. Stressed and damaged. The lenses of sunglasses should ensure that 30% of the light can pass through, with gray or green being the best.
Have you paid attention to the maintenance of sunglasses?
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