LCDs and polarized glasses can certainly be a problem depending on the screen's orientation. Was looking at a laptop yesterday while wearing my shades (we were outside downloading data etc etc) and thought of our discussion. Could see the LCD images just fine. Turned my head and... Voila! Gone gone gone. 'Looks' like LCDs are polarized. Don't know if they are, but it was just like the 'cross-polarization' effect.
Polarized lenses can also be a problem with glass windows, 'cuz they are usually polarized also. The dreaded 'cross-polarization' effect can render the outside world unseeable. Ouch!
In my very limited experience with photochromic lenses they've been fine for flying. Perhaps not all lexan is UV resistant? Perhaps my pupils are sufficient to block the pale, northern winter sun... At any rate, since it's an iffy thing, it's probably a good idea to steer clear of the photochromic lens aisle.
I'd prefer plastic lenses for their impact resistance, but in my hands they scratch too easily. Generally I'm not hard on equipment, but plastic lenses are a definite exception. Call it a curse... Also, can't seem to find polarized, photochromic, plastic lenses.
Why is amber a good lens colour? I've heard that the edge-sensing receptors of our retinas (can't remember if that's the rods or the cones) are most responsive to yellow light. Cut back on the other freqs of visible light, bath the retina in yellow, see the shadow edges and other contrast related phenomena more clearly.
Vaqueroaero: Please let us know what you get and they work!
Lu: Nice to have your opinion. Welcome back!
Stan: Thanks for the counter-opinions. Makes for better discussion.