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[rimless eyeglasses]

Hi, there. I was order one pair of eyeglasses. So I went to see my eye doctor and check my eyes prescription. My eye doctor just remeasured my PD and my own measurement of 71 was confirmed. My PD is 71mmAlso, is it possible to have the prescription fall off to zero in the bottom half of the lenses? I intend to use these glasses for driving and need to be able to read the gauges. Thank You.