1. The color selection of polarized sunglasses should be based on the principle that the color of the surrounding environment is not distorted, the edge of the object is clear, and the signal lights of different colors can be effectively identified. Especially when driving sunglasses, to ensure driving safety. The color of the lens is gray, brown, and green, because the lens of these colors absorbs infrared and ultraviolet rays better, and can improve the visual contrast and clarity. It is especially effective when worn under severe air pollution or fog.
2. The human body has an instinctive response to self-protection. When the eyes are exposed to strong light, the pupils will naturally become smaller, which reduces the ultraviolet energy entering the eyes. Once wearing glasses without UV protection, the pupils will be dilated, plus this This kind of glasses does not have the effect of isolating ultraviolet rays. At this time, the eyes are wide open, and the damage to the eyes can be imagined if ultraviolet rays enter.
3. Polarized sunglasses can block ultraviolet rays because a special coating film is added on the lenses. Inferior sunglasses not only can not block ultraviolet rays, but also severely reduce the transmittance of the lenses, making the pupils larger, and ultraviolet rays will be injected in a large amount. Damage the eyes. In addition, poor-quality lenses can also cause people to have symptoms of visual fatigue such as nausea, forgetfulness, and insomnia.