The 1.71 lens offers a perfect balance between thinness and affordability. Despite its slimmer profile, which closely matches the edge thickness of 1.74 lenses at similar prescriptions (-6.00), it is significantly more cost-effective, making it an excellent choice for those seeking high-performance lenses without the premium price tag. This lens delivers both visual clarity and comfort.
Ordinary single vision lenses are used to correct myopia, hyperopia, astigmatism and other nearsightedness problems. A variety of refractive index options are available, including 1.499 and 1.56, suitable for users with different degrees and needs. 1.499/1.56 refractive index lenses have excellent light transmittance and durability, suitable for users with medium and low degrees, more comfortable to wear and more beautiful appearance.
| 1.56 Single Vision | |||||
| DIA | SPH | CYL | DIA | SPH | CYL |
| 55mm | +0.25 ~ +8.00 | 0.00 ~ -2.00 | 65mm | +0.25 ~ +6.00 | 0.00 ~ -2.00 |
| +8.25 ~ +10.00 | 0.00 ~ -2.00 | +6.25 ~ +8.00 | 0.00 ~ -2.00 | ||
| +10.25 ~ +12.00 | 0.00 ~ -2.00 | +8.25 ~ +10.00 | 0.00 ~ -2.00 | ||
| +0.25 ~ +8.00 | -2.25 ~ -4.00 | +0.25 ~ +6.00 | -2.25 ~ -4.00 | ||
| +8.25 ~ +10.00 | -2.25 ~ -4.00 | 70mm | -0.00 ~ -8.00 | 0.00 ~ -2.00 | |
| 60mm | +0.25 ~ +10.00 | 0.00 ~ -2.00 | -0.00 ~ -8.00 | -2.25 ~ -4.00 | |
| +0.25 ~ +10.00 | -2.25 ~ -4.00 | -0.00 ~ -6.00 | -4.25 ~ -6.00 | ||




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