CR39 Custom Prescription Lenses Without Coating 1.499 Refractive Index

1 ) . The better among other index lenses in hardness and toughness , high impact  resistance.

2 ) . The more easily tinted than other index lenses.

3 ) . The higher transmittance as compared with other index lenses .

4 ) . The higher ABBE value providing the most comfortable visual experience.
                                            .

5 ) . The more reliable and consistent lens product physically and optically.

6 ) . The more popular in the middle level countries .