Love these night vision goggles! Polarization works very well. I'm a trucker, my shift ends around 2am. They really help when there is construction going on, the streets are narrow and you are blinded by oncoming traffic headlights. These glasses are very effective. I gave them 4 stars because I can't wear them with my prescription glasses, they fit perfectly with and without prescription glasses, but I see a reflection in night vision with prescription glasses that I can't get past. It's very distracting.