The Transitions drivewear sold in Costco adapts to changing daylight conditions continuously. It reduces excess light and optimizes color contrast and is polarized to block blinding glare.
In light or overcase conditions, the lenses are green/yellow color that can provide high contrast and minimized glare. When you wear it in the car or behind the windshield, the lenses activate t a copper color, which will enhance color recognition and depth perception. When it comes to bright outdoor light, the lenses activiate to dark red-brown, which will filter excess light to provide maximum comfort.
Should transition driverwear be used at night? The answer is no. Since transition driverwear lenses will revert to a clear state in the absence of UV light, they offer no protection from road glare when it gets fully dark. Like all photochromics, they are purposefully designed so that they do not react to artificial light sources like headlights and streetlights. To address nighttime glare, you should consider a pair of glasses with an anti-reflective coating, utilizing either clear or yellow lenses.