Lenses
What prism correction is and how prism values appear on a prescription.
Last updated November 3, 2026
Prism correction shifts the image seen by an eye, and is prescribed by eye-care professionals for certain eye-alignment conditions. Prism values appear on a prescription as an amount (in prism dioptres) and a base direction (up, down, in or out).
Prism lenses are not available to order at the moment. If your prescription includes prism, please contact us before ordering or consult your eye-care professional.
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