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The most common prescription format is in the way of a grid with clearly printed fields for OD (right eye), OS (left eye), SPH (sphere), CYL (cylinder.) SPH and CYL always have a (+) or (-) sign. For progressive glasses, your Rx will include an ADD value. This number always has a (+) sign.
What if I have PLANO/PL under SPH?
If there is "Plano" or "PL" in the SPH section of your prescription, it means no nearsighted or farsighted correction is needed. Enter 0 for your value in the wizard.
What if I have SPHERE/SPH/S/DS under CYL?
If there is "DS" or "Sph" or "Spherical" in the Cylinder space it indicates no correction is needed. Enter 0 for your value in the wizard.
What if I have 2 ADD values?
If you have two ADD values in your prescription (i.e.- ADD +2.00 and ADD +2.25 PAL), the ADD value with PAL (i.e.- 2.25) should be entered into the wizard ADD section.
