Invisible bifocal lenses are advanced eyeglass lenses that correct multiple vision distances seamlessly. Unlike traditional bifocals with a visible line, they have a smooth, gradual progression of power. The top portion corrects distance vision, the middle for intermediate (like computer use), and the bottom for near vision.
Product specification
| Place of Origin | Jiangsu, China |
| Brand | RISEE/OEM |
| Lenses Material | Resin |
| Lenses Color | Clear |
| Refractive Index | 1.49/1.56/1.59 PC |
| Diameter | 70/28mm |
| Abbe Value | 58 |
| Specific Gravity | 1.32 |
| Transmittance | >97% |
| Coating Choice | UC/HC/HMC/SHMC |
| Coating color | Green, Blue, Gold |
| Power Range | SPH: -2.00~+3.00 ADD: +0.25~+3.50 |
Product display