Use our Optical Lens Calculator to determine which prescription lenses to select.
Have a question or need further assistance with a prescription? Upload your prescription to have our customer care team take a look!
Use Our Rx Optical Lens Calculator to Calculate Your Recommended Prescription
Enter the Sphere (SPH) and Cylinder (CYL) values from your prescription into the Optical Lens Calculator below and click the Calculate button to determine which of our rx lenses would best suit your needs. *Note: If your Cylinder value is greater than +2.5 or less than -2.5, please contact us at (888) 597-8445 to learn about obtaining custom ground lenses.
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Eye+/- Sphere+/- CylinderSuggestion
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*Note: In addition to selecting the dropdown choice for positive (+) or negative (-) lenses, please remember to insert decimal points. Sometimes doctors get in a rush and do not put the decimal point in the actual prescription, but most sphere and cylinder values have decimal points. Example: -075 is the same as -0.75 or +550 is the same as +5.50.
Learn More about How To Choose an Optical Lens
Please watch the video below if you would like to see an overview of how to use the optical lens calculator on our website.