To match different occasions, glasses also need to be endowed with different functions. Anti-blue light lenses can reduce visual fatigue. At present, the protection method for anti-blue light lenses on the eyeglass mart generally uses reflected blue light.

The dual effect anti-blue light effect of the film layer reflecting blue light and the substrate absorbing blue light not only improves the band barrier but also greatly enhances the transmittance of visible light. In addition, true anti-blue light discount prescription glasses lenses will have a slight yellow color, which is a standard that users can judge for themselves.

Color-changing lenses, in simple terms, refer to the color changes that occur when the lenses are exposed to different UV light environments indoors and outdoors. This type of lens protects users from strong light damage during outdoor sports and play. A more intuitive way to distinguish the quality of cheap eyeglasses near-me lenses is to observe the speed of the lens's color-changing reaction and whether the color changing is uniform.

In color-changing films, the discoloration rate of the film layer is superior to that of traditional substrates. The principle of intelligent film layer color changing is that the color-changing part is the film layer, which not only has a fast color-changing speed, but also uniform and effective color changing.

In addition, the discoloration of the membrane layer can only be achieved by simply turning it into gray or tea, while there are more options for basic discoloration, both of which have their advantages and disadvantages. Of course, if the budget is sufficient, you can also choose to change the color of the film layer, which surpasses the color change of the substrate in all aspects.