crossbows soft design, smooth transition, wider reading area.

Progressive lenses provide different powers for distance vision and near vision. It is more convenient to use eyes as you like, and protects eye health. The problem of limited visual field has been significantly improved. The adaptation time for the first time is very short, and you can adapt quickly. The optical precision reaches the ideal optical precision, the crossbows mold is made to meet the individual needs, the lens varies from person to person, and the design is customized. 

JS OPTICAL also uses German Schneider workshop processing equipment to produce Freeform progressive lens, so that when the wearer observes far and near objects, in addition to not having to remove the glasses, the movement of sight in the far vision area and near vision area is also progressive. Like the fatigue of the eyeballs having to constantly adjust the focus when using bifocals, and there is no clear dividing line between the two viewing areas.