Windshield sun visors help reduce glare while driving; they complement tinted windows by providing additional protection

https://www.scribd.com/document/901957378/How-Often-Should-You-Replace-Your-Windshield-A-Guide-for-North-Carolina-Drivers-179186

Windshield sun visors help reduce glare while driving; they complement tinted windows by providing additional protection against bright sunlight exposure.