HOW TO CHOOSE PRESCRIPTION GOGGLES
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step 1
Find your prescription. Look for the cylinder ("CYL") and sphere ("SPH").
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step 2
Use the formula: (CYL / 2) + SPH
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step 3
Divide the CYL by 2 and add to the SPH.
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NEXT - CHOOSE YOUR GOGGLE MODEL
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sr-2
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SRX
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