Bifocal lenses are lenses that integrate two different focal lengths: the upper half for distance vision and the lower half for near vision (usually reading distance), with a clear dividing line in between. They are used to simultaneously correct both near and far vision problems, such as presbyopia, or for teenagers who need to correct their near and far vision. Advantages: One lens solves both vision problems, is convenient, and quick.
1.591 PC Polycarbonate Photo Grey Single Vision UC,HC,HMC,SHMC
1.591 PC Polycarbonate Photo Grey Blue Cut UV420 Single Vision UC,HC,HMC,SHMC
1.591 PC Polycarbonate Photo Grey,Brown Progressive UC,HC,HMC,SHMC
1.591 PC Polycarbonate Blue Cut UV420 Progressive UC,HC,HMC,SHMC
1.591 PC Polycarbonate Photo Grey,Brown Blue Cut UV420 Progressive UC,HC,HMC,SHMC
Thinkey Optical Co., Ltd. is a joint venture with over 20 years of expertise in manufacturing a wide range of optical lenses. Our facility spans 40 acres, with a production area of 20,000 square meters. Located in Duqiao Town, Linhai City—a coastal area of Zhejiang Province,Thinkey Optical employs approximately 200 workers and operates 6 advanced machines imported from Korea, as well as Satisloh RX equipment from Germany. Our daily production capacity reaches 30,000 pairs of high-quality lenses.
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