The following retailers are certified providers of authentic brand lenses: LensDirect
This is the distance (in mm) between your pupils. If it's not on your prescription, you can measure it yourself: buy transition lenses online
Stand 8 inches from a mirror. Hold a millimeter ruler against your brow. Line up "0" with your left pupil and read the measurement at your right pupil. The following retailers are certified providers of authentic
Sites like Kits and GlassesUSA offer free digital PD tools that use your webcam or a standard magnetic card (like a gift card) for scale. 3. Where to Buy Online Line up "0" with your left pupil and
Buying lenses online can save you significantly compared to brick-and-mortar optical shops. This guide covers how to select the right lens tech, measure your own Pupillary Distance (PD) , and choose a reliable retailer. 1. Choose Your Lens Technology
To order online, you need two critical pieces of information: