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变色镜由于镜片中含卤化银,光照下能分解出银,使片颜色变深,其变色深浅与光线强度成正比。据此分析,三种人不宜戴。一、老年人。因其眼睛老花,读、写、看时均需明亮光线,而强光会使镜片颜色加深,导致瞳孔
As the lens contains silver halide, light can decompose silver, so that the color of the film becomes darker, and its color depth and light intensity is proportional to the light intensity. According to this analysis, three kinds of people should not wear. First, the elderly. Because of its old eyes, read, write, look when you need bright light, and glare will make the lens color deepens, resulting in pupil