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1.74 Anti-Blue Light Lenses are high-quality eyeglass lenses that combine high refractive index with anti-blue light functionality, making them suitable for people with high myopia who spend long time.
Get customized protection with Crystal Optical’s OEM/ODM services for custom made eyeglass lenses from a reliable blue block lens supplier.
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| Index | 1.74 |
| Material | M1.74 UV420 |
| Diameter | 65/75 mm |
| Power Range | SPH: -12.00+6.00, CYL: 0-6.00 |
| Abbe Value | 33 |
| Coating | SHMC |
| Coating Colour | Green / Blue |
| Design | Aspherical |
Refractive index : 1.74 lenses have a higher refractive index than 1.71 lenses.
Thickness : 1.74 lenses can be made thinner than 1.71 lenses for the same vision correction needs due to the stronger refraction of 1.74 lenses.
Abbe number : 1.74 lenses usually have an abbe number of about 33, while 1.71 lenses have an abbe number of 37, so 1.71 lenses have less dispersion and may have a better visual effect.
Price : The price of 1.74 index lenses is usually higher than that of 1.71 index lenses due to the higher production process and material cost.
Light and comfortable
The high refractive index of 1.74 makes the edges of the lens thinner, the overall weight is reduced, and it is more comfortable to wear, especially for people with high myopia .
Anti-blue Light Eye protection
Anti-blue light technology can effectively block harmful blue light, reduce eye fatigue and protect eyesight.
Anti-ultraviolet, dust-proof, waterproof and other functions.
If you have any questions or suggestions about our prescription lenses, please contact us, we will reply as soon as possible.
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