| Place of Origin:CN;JIA | Brand Name:CONVOX |
| Model Number:1.49 | Lenses Material:Resin |
| Vision Effect:Flat Top Bifocal | Coating:UC/HC/HMC |
| Lenses Color:Clear | Diameter:70mm |
| Index:1.49 | Material:CR-39 |
| SPH:+3.00~-3.00 ADD:+1.00~+3.00 | MOQ:2000 Pair |
| Product Name:1.49 Flat Top Lens | RX Lens:available |
| Package:White Envelope | Samples Time:1-3 Days |
- Packaging Details 1.56 hmc lens packing: envelops packing (For choice): 1)standard white envelops 2)OEM with customer's LOGO, have MOQ requirement cartons: standard cartons:50CM*45CM*33CM(Every carton can include around 500 pairs lens,21KG/CARTON) Port：SHANGHAI
Bifocal lenses are perfect for people suffering from presbyopia- a condition in which a person experiences blurred or distorted near vision while reading a book. To correct this problem of distant and near vision, bifocal lenses are used. They feature two distinct areas of vision correction, differentiated by a line across the lenses. The top area of the lens is used for seeing distant objects while the bottom part corrects the near-vision
1. One lens with two points of focus, don't need change glasses when looking far and near.
2. HC / HC Tintable / HMC / Photochromic / Blue Block/ Photochromic Blue Block all available.
3. Tintable to various fashionable colors.
4. Customized service, prescription power available.
As people age, they may find that their eyes are not adjusting to distances as they used to. When people inch closer to forty, the lens of the eyes begin to lose flexibility. It becomes difficult to focus on close objects. This condition is called presbyopia. It can be managed to a large extent with the use of bifocals. Bifocal (also can be called Multifocal) eyeglass lenses contain two or more lens powers to help you see objects at all distances after you lose the ability to naturally change the focus of your eyes due to age.
The lower half of a bifocal lens contains the near segment for reading and other close-up tasks. The rest of the lens is usually a distance correction, but sometimes has no correction at all in it, if you have good distance vision. When people inch closer to forty, they may find that their eyes are not adjusting to distances as they used to, the lens of the eyes begin to lose flexibility. It becomes difficult to focus on close objects. This condition is called presbyopia. It can be managed to a large extent with the use of bifocals.
Index: 1.499, 1.56,1.60, 1.67, 1.71，1.74, 1.76，1.59 PC Polycarbonate 1.Single Vision Lenses 2. Bifocal/Progressive lenses 3. Photochromic Lenses 4. Blue Cut Lenses 5. Sunglasses/Polarized lenses 6. Rx lenses for single vision, bifocal, freeform progressive AR treatment: Anti-fog, Anti-Glare, Anti-virus, IR, AR coating color.