Anti Blue Light Progressive Multifocal Lenses women sunglasses Model Number: CMR0511

Model Number: CMR0511

Model Number: Y2892

Certificate Number: SZ1704017466

Model Number : Eyeglasses

Model Number: LYZB_557514363522

Anti Blue Light Progressive Multifocal Lenses women sunglasses Model Number: CMR0511How to choose lens index Lens index reflects lens thickness, there is 1. 56, 1. 61, 1. 67 index etc. The higher lens index is, the thinner lens is. 1. 67 is thinner than 1. 61 than 1. 56 at the same degree. Lens thickness also depends on frame size. The bigger frame is, the thicker lens is. 1. 56 index suggestion degree: SPH: 0. 00 ~ 4. 00; CYL: 0. 50~ 2. 00 SPH: +0. 50~+4. 00; CYL:+0. 50~+2. 00 1. 61 index suggestion degree: SPH: 0. 00 ~ 6. 00; CYL: