Originally Posted by
adamhenry
Polarized glasses will reduce glare which causes eyestrain. Squinting to see through glare stresses the eyes and can cause headache, irritation, and fatigue. IMO, if you are in a situation where glare is an issue you will benefit from polarization. The polarization will filter out the reflected light allowing more comfortable viewing of the scene with less stress on your eyes.
Polarized lenses will also screw with your depth perception. Unless much of your riding is around coastal areas, I would not recommend polarized lenses for cycling.