Prescription Lens Material Guide
Lens Material | Index | Recommended Rx Range |
---|---|---|
Plastic CR-39 | 1.49 | Up to + or -2.00 |
Trivex | 1.53 | Up to + or -4.00 |
Polycarbonate | 1.58 | Up to + or -4.00 |
High Index 1.60 | 1.60 | Up to + or -6.00 |
High Index 1.67 | 1.67 | Up to + or -8.00 |
High Index 1.70 | 1.70 | Up to + or -10.00 |
High Index 1.74 | 1.74 | Up to + or -12.00 |