A special calculation method is used to calculate the convex parabola and cylinder, and combined with the inner surface composite asymptotic design to create a three-dimensional optimized, thin, asymptotic multi-focal.
Double-sided intelligent progressive is a 100% personalized product. It uses a special calculation method to calculate the convex parabola and cylinder, and combines it with the inner surface composite progressive to design a three-dimensional optimized thin progressive multi-focal. According to personal habits, you can choose A1-multi-purpose for far, A2-multi-purpose for near, and A3-balanced to create a perfect personalized exclusive lens.