February 23 2016 Prescription information at your fingertips.

Before you order with Visual Mass, please ensure that you have a prescription that is:
1. Issued by a licensed optician or optometrist not longer than 2 years ago
2. Is for glasses and not contact lenses!
3. Includes your pupillary distance (PD) — the distance in millimeters between your pupils. If your prescription does not include your PD, you could always drop by our store and our helpful associates will be more than willing to measure your PD for you!

More about your prescription
If you do not have astigmatism, the OD Sphere (SPH) will be the only value in your prescription. Unfortunately unable to fill a prescription if your SPH value is stronger than -10.00 or +6.00.
For those with astigmatism, your prescription will contain a cylinder value. Unfortunately, we are unable to fill a prescription with a cylinder value stronger ±2.00.