China Freeform Progressive Lens Factories –  Ultra Thin High Index 1.74 Lenses  – YOLI

China Freeform Progressive Lens Factories – Ultra Thin High Index 1.74 Lenses – YOLI

China Freeform Progressive Lens Factories – Ultra Thin High Index 1.74 Lenses – YOLI

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Our growth depends on the superior equipment ,exceptional talents and continuously strengthened technology forces for , Lentes 1.56 , 1.56 Blue Cut Hmc , With a wide range, good quality, reasonable prices and stylish designs,Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs.
China Freeform Progressive Lens Factories – Ultra Thin High Index 1.74 Lenses – YOLI Detail:

lens glasses

What Are High Index 1.74 Lenses?

If You Have A Very Strong Prescription, You Should Consider Ultra Thin High Index 1.74 Lenses.

High Index 1.74 lenses are the thinnest, flattest, and most cosmetically appealing lens ever developed.

These ultra thin lenses are nearly 40% thinner than plastic and 10% thinner than 1.67 high index lenses, offering you the ultimate in technology and cosmetics. The thinner lens is much more flattering, reducing the distortion that high prescriptions cause when made with lower quality lenses.

What lens thickness should I choose?

If you’re moderately, or very short-sighted you’ll benefit from thinner lenses as the edge thickness of your lenses will be more visible.

Lenses with a refractive index of 1.6 are ideal for prescriptions where the value of your SPH prescription is between -2.50 and -4.00.

Between -4.00 and -6.00 we’d recommend a lens with a refractive index of 1.67, and any prescriptions over that a lens with a refractive index of 1.74 will be more suitable.

If your prescription is over -5.00 we’ll need an accurate measurement of the distance between your pupils, often referred to as the PD.

Because lenses for long and short-sightedness are different, there are different considerations for each.

174 high index lenses
spectacle lens manufacture

Hi-index 1.74 lenses are perfect for

1. Suitable for high power prescriptions in ranges +10.00 to -10.00
2. Not recommended for semi-rimless or rimless glasses
3. Exceptional scratch durability
4. Exceptional optical Clarity
5. 50% thickness reduction
6. 30% weight reduction
7. Suitable for large sized frames


Product detail pictures:

China Freeform Progressive Lens Factories –  Ultra Thin High Index 1.74 Lenses  – YOLI detail pictures

China Freeform Progressive Lens Factories –  Ultra Thin High Index 1.74 Lenses  – YOLI detail pictures

China Freeform Progressive Lens Factories –  Ultra Thin High Index 1.74 Lenses  – YOLI detail pictures

China Freeform Progressive Lens Factories –  Ultra Thin High Index 1.74 Lenses  – YOLI detail pictures

China Freeform Progressive Lens Factories –  Ultra Thin High Index 1.74 Lenses  – YOLI detail pictures


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Being supported by an advanced and specialist IT team, we could give technical support on pre-sales & after-sales services for China Freeform Progressive Lens Factories – Ultra Thin High Index 1.74 Lenses – YOLI , The product will supply to all over the world, such as: Algeria, Karachi, Somalia, We have developed large markets in many countries, such as Europe and the United States, Eastern Europe and Eastern Asia. Meanwhile with the powerful predominance in persons with ability, strict production management and business concept.we constantly carry on self-innovation, technological innovation, managing innovation and business concept innovation. To follow the world markets fashion, new products are kept on researching and providing to guarantee our competitive advantage in styles, quality, price and service.
  • It is a very good, very rare business partners, looking forward to the next more perfect cooperation!
    5 Stars By Nicole from Portugal - 2018.06.18 17:25
    In China, we have many partners, this company is the most satisfying to us, reliable quality and good credit, it is worth appreciation.
    5 Stars By Ina from Mecca - 2017.01.28 19:59
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