Ideal Optical Blue Block Bifocal Lenses: Blocks harmful screen blue light, dual zones for far/near. Perfect for office workers, seniors. Reduces eye fatigue, clear vision.Professional optometry, impact-resistant. Blue light filter + dual-zone vision. Protects eyes, Get yours today!
Bifocal lenses are special glasses lenses with two different power zones in one lens—no need to switch between two pairs of glasses!
| 双光/photochromic bifocal lens | ||
| 所以 | 新加坡制药公司 | 添加 |
| 70/28毫米 | 0.00~+3.00 | +1.00~+3.00 |
| 0.00~-2.00 | +1.00~+3.00 | |
1. How they work (simple version)
They have a clear “line” (some are subtle) dividing the lens into two parts:
Top part: Lower power (or no power). For seeing far things, like driving, watching movies, or looking at distant signs.
Bottom part: Higher power. For close-up tasks, like reading books, scrolling phones, typing on computers, or doing small crafts.
2. Who needs them?
Mostly people with presbyopia (when your eyes can’t focus on close things as you get older)—especially if you also need glasses for seeing far (like nearsightedness).
Folks who switch between far and close vision a lot: teachers (blackboard + grading papers), doctors (patient charts + tools), or office workers (talking to coworkers + staring at screens).
No. 7 Linjia Road, Glasses Industry Zone, Situ Town, Danyang, Jiangsu, China 212331
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