1.74 high-index lenses are the thinnest and lightest prescription lenses available for strong prescriptions. They are ideal for people with high myopia (severe nearsightedness) as they reduce lens bulge and weight significantly compared to standard lenses. They also commonly feature UV protection, anti-reflection coating, and impact resistance.
Product specification
| Place of Origin | Jiangsu, China |
| Brand | RISEE/OEM |
| Lenses Material | Resin MR-174 |
| Lenses Color | Clear |
| Refractive Index | 1.74 |
| Diameter | 70/75 |
| Abbe Value | 33 |
| Specific Gravity | 1.46 |
| Transmittance | >95% |
| Coating Choice | HC/HMC/SHMC |
| Coating color | Green, Blue, Gold |
| Power Range | SPH: 0.00~-18.00 CYL: -0.25~-4.00 |
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