Best sunglasses

[chevvron]

Originally Posted by bafanguy

I had good results with Serengeti Drivers. They don't darken as much as reduce glare thereby improving the visual distinction between objects:

https://www.serengeti-eyewear.com/en...ivers-gradient

You should never wear photochromatic sunglasses while flying.
Research at RAE Farnborough concluded that whilst they might darken quickly, it takes a very long time for them to clear again and hence the evaluators (then known as the Institute of Aviation Medicine) sent out a big NO to both the RAF and the CAA.
Likewise, polarised glasses should not be used while flying as without realising it, you may have polarised glass on some of your instruments rendering them unreadable if the glass gets 'rotated' or if you tilt your head by more than a certain amount.