What vehicle are you coming from? An SUV that had factory tinted windows? For me, I have very light-sensitive eyes. I have always been blinded by headlights at night. Tinting your windows makes a HUUUUGE difference. I need to tint my rear windows and side windows in every vehicle I've ever owned just to make driving at night "safer" for me. If you are coming from a vehicle that had factory tinted windows and you're not used to having a non-tinted rear window, yes that can definitely feel "blinding" regardless of any auto-dimming mirrors (especially when in front of a truck, since their headlights are basically on the same plane as your eyes).