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FAQ
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Pay attention to the categories on the label or mirror legs and choose as needed
At present, there are two types of Sunglasses on the market, one is sun visors, and the other is light Sunglasses. There are different classifications and uses. It is recommended to check the categories and classifications on the mirror legs or labels when purchasing, and choose according to the actual usage scenarios.
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Polarized Sunglasses are suitable for outdoor activities such as fishing and driving
Polarizers can reduce strong and stray light, reduce glare caused by diffuse reflections on road or water surfaces, and improve visual clarity. They are suitable for outdoor activities such as fishing, driving, and sailing.
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Sunglasses are not suitable for all people
According to Li Yan and other doctors from the Optometry Center of Peking University People's Hospital, wearing Sunglasses is an active eye protection method for people without eye diseases; For people with cataracts, Keratitis and dry eyes, wearing Sunglasses can reduce the stimulation of light on the eyes and reduce photophobia and tearing. However, people with glaucoma, color blindness and Nyctalopia are not suitable to wear Sunglasses.
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Regularly check the lenses
The usage cycle of glasses is related to multiple factors such as their quality, frequency of use, usage environment, and personal usage habits. Sunglasses will deteriorate and change with use, and their UV resistance will also decrease. When the leg coating falls off, rusts, or the lens scratches, the film falls off, pay attention to timely replacement.
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Unqualified Sunglasses are more harmful to eyes
Since wearing Sunglasses will reduce the luminous flux entering the human eye, causing the pupil of the wearer to increase, under the same external conditions, if Sunglasses cannot block the corresponding amount of ultraviolet light, the human eye will accept more ultraviolet light than when not wearing Sunglasses, that is, if Sunglasses cannot block the corresponding amount of ultraviolet light, the damage to the eyes will be greater than when not wearing sunglasses.
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Sunglasses are not suitable for all people
According to Li Yan and other doctors from the Optometry Center of Peking University People's Hospital, wearing Sunglasses is an active eye protection method for people without eye diseases; For people with cataracts, Keratitis and dry eyes, wearing Sunglasses can reduce the stimulation of light on the eyes and reduce photophobia and tearing. However, people with glaucoma, color blindness and Nyctalopia are not suitable to wear Sunglasses.