JFDI, for what it's worth (not much, I think) here are my opinions.
I have tried just about everything, I think, from the little reading glasses to stick-on magnifying lenses on my RayBan sunglasses to my present setup: SmartSeg bifocals with little or no correction in the top, because my distance vision is still good enough to pass the physical with no restrictions; Brimz sunglasses, which attach to the bill of my cap, and flip up out of the way when I don't need them, while providing wraparound sun protection without touching my face or breaking the earseal on my headset at all. They are grey because that's the color I found at the time. I prefer brown lenses for flying offshore, because they seem to filter out all the blue haze and provide more contrast, but the grey ones do just fine, especially since I rarely fly in sunlight. All those photons beating down on the rotor blades and destroying lift scare me.
