Description
Equipped with comprehensive measuring functions, it provides SPH, CYL, AXIS and pupil distance optometry
Durable and easy to operate
Easily and intuitively read the sphere focal scale value
High eco-friendly materials
Design fitting the face curve and no stimulation
Easy to take and clean
Free switch between the cross-cylindrical lens and the rotary prism
When the rotating risk is turning by the sphere, it can make sphere power adjust 3.00D for big scope.
It is designed expediently and smartly for a particular cross cylinder. Supporting supplementary lens could increase scope of measurement.
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