1 of 1 people found the following review helpful
as it say's,
This review is from: **2 x Pairs** Clip-On Driving Glasses - Safer Driving In All Weather - Improved Day & Night Vision - Lightweight & Scratch ResistantAs it say's those clip-on's reduce the glare of on-coming traffic, changing it from a white glare to a yellow that is a lot easier on the eye.
they work well in conjunction with the sodium street lighting, I believe that I can see slightly better in semi-shaded/lite areas.
Not for day-time use unless your really fond of yellow.