BS-PM / BS-13 / BS-15
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CUSTOM-MADE

BACK SIDE PROGRESSIVE

How do you realize the comfortable field of vision corresponding to the individuality of every person’s eyes? The answer is TOKAl’s CUSTOM-MADE BACK SIDE PROGRESSIVE LENS completed by the unique technology and the original design of TOKAI.

TOKAI provides a high-quality field of vision fit you perfectly.

● Increasing the vision field by 30%
● Improving optical comfort by 35%

According to your frame selection and the power of the lens. You can select a standard, a higher or lower base curve. Also TOKAI can determine an appropriate front curve considering balance of power between right and left.

FLEXIBLE INSET DESIGN

Inset can be specified from 0.0mm to 5.0mm at 0.1mm steps and reading distance 32cm, 36cm, 40cm.
TOKAI can also set optimal inset from your powers of lens and lens curve based on standard parameter PD 62mm & RD 36cm.