The science is simple: photochromic lenses need UV light to activate. Because modern car windshields are designed to block over 99% of UV rays to protect you, they also stop your lenses from changing color! 🚗☀️ Swipe through the graphic to see exactly how these specialized molecules react to light, and learn about driving-specific lens alternatives that work perfectly behind the wheel. 💡 #EyeCare #VisionScience #TransitionsLenses #DrivingTips #HealthyEyes #Optometry