Your high school physics professor's comments about polarization aren't really accurate.
Polarized lenses are quite USEFUL, especially in situations where your field of vision is
filled with reflected light (e.g. when driving). The polarized filters help to cancel out any
polarized light sources, which include light that is reflected off other objects.
HOWEVER it is not these reflected light sources that pose the biggest risk to your eyes.
Removing polarized light just makes it easier to see. It is UV light that is (potentially)
an actual risk to your eyes. And basically any high quality lense can remove most/all UV.
The Vuarnet lenses, in particular, are very high quality sunglass lenses and do as
good a job as any you can buy at removing UV.
Kwad
Polarized lenses are quite USEFUL, especially in situations where your field of vision is
filled with reflected light (e.g. when driving). The polarized filters help to cancel out any
polarized light sources, which include light that is reflected off other objects.
HOWEVER it is not these reflected light sources that pose the biggest risk to your eyes.
Removing polarized light just makes it easier to see. It is UV light that is (potentially)
an actual risk to your eyes. And basically any high quality lense can remove most/all UV.
The Vuarnet lenses, in particular, are very high quality sunglass lenses and do as
good a job as any you can buy at removing UV.
Kwad