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I need help with a eyeglass prescription.
Asked by AtSeDaEsEpPoAoSnA (1502)
August 20th, 2009
I am trying to order contacts online. I have my prescription, sphere, cylinder, and axis. I am on lensecrafters.com. It already has the dimensions of the contacts, but it asks for the power of my eyes. Do I add up sphere, cylinder, and axis; is there another equation I need to use?
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