Will myopia lens harm the eyes?

Myopia photochromic lenses, also called photochromic lenses, or photochromic lenses. Normally priced myopic photochromic lenses can change the color of the lens according to the intensity of external light, so that the eyes are not stimulated by strong light, which is beneficial and harmless to the eyes. But the poor quality myopia lens is cheap. On the one hand, the discoloration time and recovery time are relatively slow, and the effect of shielding strong light is not good. In addition, the coloring agent is not uniform, and it is easy to quickly age and deteriorate. Therefore, in When buying myopia glasses, you must pay attention to the quality of the color-changing myopia lenses. Inferior color-changing myopia lenses can cause damage to human eyes. On sunny days with strong light, people who wear color-changing glasses abound, and some people use them to protect them. Eyes, some people use it to show their demeanor.

Scientific research has found that wearing color-changing myopia glasses for a long time will cause more or less harm to the eyes. The reason why the color-changing myopia glasses change is because the color-changing myopia lenses contain silver halide, which will change with the intensity of light. However, it has changed. Everyone knows that sunlight contains ultraviolet, infrared and visible light. Although myopic photochromic lenses weaken the light, they cannot filter out ultraviolet rays. On the contrary, after wearing myopic photochromic glasses, the visible light is weakened and the pupils are in a long time. The enlarged state doubles the amount of ultraviolet rays entering the eyes, which can cause greater damage to the eyes. Excessive ultraviolet radiation can cause corneal edema, lose the original luster and elasticity, make the pupils slow to respond to light and reduce vision. Under the long-term action of ultraviolet rays, it can also cause lens hardening and calcification, and induce cataracts.

Therefore, I advise everyone that it is best not to wear color-changing myopia glasses for a long time, so as not to cause harm to the eyes.