Things They Should Invent: Transitions lenses with manual override

Transitions lenses are those eyeglass lenses that automatically darken when exposed to bright light and then turn clear again under normal light conditions, with the intended goal of automatically switching back and forth between being sunglasses and clear glasses.

The problem is they don't always work as well as intended. Often the dark doesn't go away quickly enough, leaving the wearer looking dorky and awkward indoors. And sometimes the dark goes away when you're outdoors on a bright sunny day but briefly in the shade or wearing a hat or something, failing to protect the your eyes.

Solution:  a small, discreet button on the frame that will force the lenses to change manually. You step inside, the glasses don't change quickly enough for your liking, you press the button and it changes immediately.

Yes, I know clip-on sunglasses are a thing, but they're even dorkier. Effortlessly functional Transitions lenses in an attractive frame would address the fashion aspect without the expense of buying two completely different pairs of glasses.  And a manual override would make Transitions lenses effortlessly functional.