Is colored glasses harmful to eyes?

1. Colored contact lenses are definitely available, but no matter what kind of contact lenses will wear the cornea to a certain extent, the damage is not great. If it is the first time to wear color film, it is best not to wear it for more than 4 hours for the first time, and then increase it every day.

Don't wear it for more than 8 hours at a time. Of course, you can't buy fakes or fake brands, because the color of some fake color films is the result of pigment rendering, and glasses and tears combine with pigments, leading to blindness.

2. If it is a color-changing lens, resin-colored lenses are generally colored lenses, which can prevent ultraviolet rays and protect eyes. Some color-changing lenses can change the color of the lens according to the intensity of external light. Color-changing lenses that protect eyes from strong light are of poor quality. On the one hand, the color-changing time and recovery time are slow, and the effect of shielding strong light is not good. In addition, the uneven distribution of dyes is easy to age quickly, and the discoloration effect becomes worse, which leads to damage to your glasses, but it has no effect on your eyes. Nowadays, colored lenses have developed to the point where you look at others just like normal lenses, but if others look at your lenses in color, they will not look like them. It used to cause you to see things in class. The lenses are brown and the brown lenses are yellow. In fact, colored lenses are just a beautiful gimmick. Anyway, when I was a student, the teacher refused to wear it, saying that it was colored lenses, which did not conform to the students' code of conduct and did not respect the teacher. Now think about the teacher's theory.