Is color-changing glasses good for eyes?

Short-term use will not be bad, but it has the following disadvantages:

1, the patient's pupil will change with the color of the lens. For some patients, it will increase the burden on the eyes and easily lead to symptoms of visual fatigue.

2. When the environment enters other dark environments from bright light, there will be short-term dull symptoms, which will cause certain damage to the eyes. Because of the poor light transmission of glasses, the effect of treating myopia is not obvious.

life

Generally, the service life of color-changing lenses is about 1-2 years, but many enterprises are trying to extend the service life of color-changing lenses.

After spin-coating the color-changing layer, the image lens will also undergo enhanced coating treatment. In addition, the color-changing substance-spiropyrans itself has good light stability, and the color-changing function can be maintained for a longer time, which can basically reach more than two years.