The ultimate combination of material, design and matching surface treatments are the basic guidelines handled by Tokai in their permanent aim for implementing innovative research. On the basis of these principles, and taking into consideration the wearers expectations, the 1.70 index removes any limitations towards perfection.

Abbe Value

The 1.70 index plastic lens offers a thinner profile than the 1.67 index, while delivering superior optical clarity with a higher Abbe value of 36 compared to 32 in 1.67 lenses.