Will the blue light protection function of K-lon nano glasses weaken over time?

K-lon nano glasses can maintain a relatively stable blue light protection performance for a certain period of time under normal use and proper maintenance. The nano blue light protection coating on the lens has good durability, and is less affected by daily light, normal temperature and humidity. However, if the glasses are exposed to direct strong light for a long time, such as being placed on a window sill exposed to the sun, a car dashboard, or other high temperature and strong light environment, the microscopic particles in the coating may undergo structural changes and accelerate aging; in high humidity environments, such as bathrooms and the seaside, moisture can easily penetrate and erode the coating, affecting its performance; frequent use of rough objects to wipe the lenses will also wear the coating, causing the blue light protection effect to gradually decrease. It is usually recommended that wearers go to a professional optician or contact the brand customer service after 1-2 years of use to test the blue light protection performance of the glasses. If the performance is significantly reduced, consider replacing the lenses to ensure that the eyes continue to be effectively protected.