Did this zombie thread get resurrected by a shill?
Anyway, polarized lenses are a must for me when the ground is damp or reflecting a lot of light and I'm riding into the sun (exactly the conditions on my commute). The glare is unmanageable otherwise. No issues seeing my phone or Garmin 520 displays.
I've started using Oakley Prizm lenses, which offer glare reduction even on the non-polarized options, and they're fine under other conditions, but it took a single ride into the A.M. sun using the Road Prizm lens for me to pick up a Daily Prizm polarized lens.