How to Choose lenses

 Lens is related to the health of our eyes, so we pay more attention to its function when choosing. Overall its function basically reflects the absorption degree in transmittance, harmful ray, chemical stability, whether deft, wear-resisting, safety and so on. From the perspective of Eyeglasses Transition Lenses design, there are only two aspects: visual effect and lens function.

The visual effects are changed in the following ways. Materials, different materials have different optical properties, different materials can cause different visual effects; The design of spherical and aspherical Gradient Tint Prescription Lenses. Generally speaking, compared with the spherical High Index Lenses Meaning of the same material and degree, the objects of aspherical lenses are more natural and comfortable. Refractive index, high refractive index Glasses Lens Index mainly improve the thickness, emphasis on aesthetic portability.