SHINU progressive multifocus lenses
Area 1. The top optical area of the lens used to look far(When walk around).
Area 2. The degree of the middle gradually change(Let your eyes adapt more naturally).
Area 3. The bottom optical area used to look near(When read books, computers and cellphones ).
The LH sign. Please kindly note that there is a non-removable 'LH' sign carved one the normal progressive multifocus lenses, which is used to locate the top area and the bottom area. If you mind, please order the anti-blue light progressive multifocus lenses without any marks.