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Hours: 5am - 9pm PT every day Call: (800) 211-2105
Fax: (415) 883-7020
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Stand 8 in. away from a mirror. Hold a ruler against your brow.
Close your right eye then align the ruler’s 0 mm with the center of your left pupil.
Look straight then close your left eye and open your right eye.
The mm line that lines up to the center of your right pupil …