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Certified Paraoptometric Technician Review Course CPOT - Idaho ...

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Reading PrescriptionTake the “add” portion of the prescription and algebraicallycombine it to the sphere of the RxKeep the cylinder and axis the sameEx. -3.00 -1.00 x 090-2.00 -0.75 X 180Add power +2.25Reading Rx:-0.75 -1.00 X 090+0.25 -0.75 x 180

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