Home > Optometry Instrument > PD meter > LY-9F PD&PH Meter

LY-9F PD&PH Meter

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Product Description

 

Product Abstract:
● Pupil distance and pupil height combined product.Easy to be operated.
When measuring PD,adjust the top knobs in the left and right.
When measuring PH,please wear glasses,adjust the middle knobs in the left and right,from boresight of eyes which get through lenses to the lowest bottom of glasses is ok.
It's also an essential tool for optometry of progressive glasses.

 

 

 

 

 

 

 

 

 

 

 

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