It is suitable for eyesight examination in spectacles shops, department of ophthalmology in hospitals, schools and enterprises, use for progressive lens
Detailed Product Description:
■ PD adjustable range : 50mm,52mm,54mm,56mm, 58mm、60mm、62mm、64mm、66mm,68mm,70mm,72mm for selection.
■ Axial calibration on each disc:165°～0°～180°～25° axis graduation line runs counter clockwise along axis graduation line of lens frame, with interval of graduation line being 5°.
■ Degree that front lens rotates around optic axis inside lens frame:360°
■ Frame temple is fixed