Why are photochromic lenses not suitable for driving?

Why are photochromic lenses not suitable for driving?

There’s a suspect at play, and which photochromic lens technology you select will determine if they work throughout your daily commute. They are also obtainable in shatter-resistant, standard and high index lens materials. No matter your prescription or lens preference, you might choose either gray or brown Transitions lenses. Transitions lenses are also appropriate for…