Should shooting glasses be polarized? Yes for glare with iron sights; no for red dots, clays and range displays

What a polarizer does

Light reflected off a flat surface — water, a hood, wet pavement — is largely polarized in one plane. A polarized lens contains a filter that blocks that plane, so the glare disappears while the scene stays. That is a real benefit when you are looking across a lake or driving into a low sun, which is why the feature migrated from fishing sunglasses into everything else. The filter has a second property: it also blocks polarized light coming from things you want to see.

Red dots, holographic sights and LCDs

Many reflex sights project their dot off a coated window, and the light that reaches your eye can be partly polarized. Tilt your head, or mount the gun at an angle, and a polarized lens can dim the dot toward invisible. LCD screens — a range's target-return display, a chronograph, a phone — emit polarized light outright, and at the wrong angle a polarized lens blanks them entirely. Neither effect is a defect; it is what the filter is for. It is simply the wrong tool for a line where you use optics and read screens.

Clays: nothing to gain

A clay target is not a flat reflective surface and an overcast sky is not a lake. A polarizer removes nothing that was in your way and takes some total light for the trouble; what makes an orange clay separate from green and gray is a contrast tint — vermillion, rose, amber — not a glare filter. The matrix is on best lens color for sporting clays.

When polarized helps

• Waterfowl and open water. Glare off the surface is the problem; iron sights or a bead do not care about the filter.
• Bright pavement or sand with open sights. Same logic.
• Driving to the range. Then swap. A kit makes that a ten-second job.

If you shoot with a red dot or a scope, or on a range with electronic target displays, the non-polarized version of the same tint gives you the color benefit without the risk. Every kit on this site's rankings is non-polarized unless the maker says otherwise; Revision sells polarized StingerHawk lenses as a separate kit, and retailers list polarized Magpul Defiant variants, which is why the Defiant review flags it.

Polarized and the rating

Polarization is a film or a lens property; the impact rating is the lens and frame as tested. A polarized lens from a rated maker's own kit carries the rating the maker states for that kit. A polarized sunglass with no standard on its page is a sunglass, whatever it costs. The check is on how to tell if glasses are ballistic rated.

Non-polarized picks

Before you decide, it is worth confirming that the lens you already own is polarized at all — the screen test takes two minutes and is on how to tell if lenses are polarized. If you conclude polarization is not for you, the plain neutral alternative is on smoke lens safety glasses.