For seeing near or far, but not both.
For seeing for both distance and reading. Will be noted as an ADD to your prescription.
NOTE: If you need progressives and are purchasing online, we recommend purchasing the frame and taking to your local optician to have filled, or if you are in the Portland area, having the prescription filled here.
WHAT WE NEED TO MAKE YOUR GLASSES
We simply need your prescription information and your PD (pupillary distance) measurement, which can be provided via email or fax. Most eyeglass prescriptions are valid for 1 or 2 years. We do require a valid prescription to fulfill your order.
Pupillary distance is the measurement in millimeters between the centers of your pupils. An accurate PD is necessary to properly mount the lenses in your frame. It is common for the PD not to be included on the written prescription but should be available thru your optician. You can also measure your PD at home using our PD Measurement Tool.
We recommend the guidelines below when selecting your lenses. If you have any questions about selecting the best lens for your prescription please contact us by phone or email.
CR-39: Prescription maximum of +/-3. Most prescriptions fall into this range. CR-39 has the most clarity and color definition. Includes AR coating and scratch resistance.
Polycarbonate: Prescription maximum of +/-5. Polycarbonate is impact resistant with slightly less clarity than CR-39. Includes AR coating, scratch resistance and 100% UV protection.
1.67 High Index: Prescription maximum of +/-8 spherical. Almost 10% thinner than CR-39 with the same prescription. Includes AR coating and scratch resistance. High clarity and color definition, with thinner lenses for stronger prescriptions.
1.74 High Index: Prescription maximum of +/-12. Includes AR coating and scratch resistance. The thinnest lens material for the strongest prescriptions.