The following retailers are certified providers of authentic brand lenses: LensDirect

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

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.

To order online, you need two critical pieces of information:

The latest standard. It darkens in seconds and clears faster than previous versions. Best for general daily use. Digital Ultra Progressives $435.00$885 Zoomer Intelligence Corp& more Go to product viewer dialog for this item.

Specifically for driving. These are always slightly tinted and change from green/yellow to reddish-brown based on light intensity. 2. Get Your Measurements Ready

Designed for light-sensitive eyes. These get extra dark outdoors and—crucially— by reacting to visible light, not just UV rays. Polarized Rectangle Sunglasses $300.00$450 readygolf.com& more Go to product viewer dialog for this item.