There is no direct correlation between the shade of sunglasses and the effectiveness of UV protection.
The anti-ultraviolet effect of sunglasses mainly depends on the material of the lens and the added anti-ultraviolet coating and other technologies. Qualified sunglasses, regardless of color, as long as they are marked with similar signs such as UV400, can block more than 99% of ultraviolet rays. The lens without anti-ultraviolet function, even if the color is very deep, can not effectively block ultraviolet light, long-term wear may also be due to pupil dilation, let more ultraviolet light into the eyes, but cause damage to the eyes.
Different colored lenses have their own characteristics and applicable scenarios:
Gray lens: can evenly absorb light, do not change the color of the object, can provide a natural visual effect, suitable for a variety of environments, especially driving and outdoor activities.
Brown lens: while absorbing light, it can enhance the contrast and make the scene look clearer, suitable for use in sunny or cloudy weather, and has a good effect on reducing glare.
Green lens: can effectively absorb infrared and some ultraviolet rays, the visual effect is relatively soft, long-term wear is not easy to produce visual fatigue, suitable for use in a strong light environment.
Yellow lens: can filter out most blue light, enhance contrast, in cloudy or low light environment can provide a clearer field of view, but not suitable for use in strong sunlight, because its UV protection is relatively weak.
Post time: Mar-19-2025