Do I really need polarized lenses?

Ask Dr. Flake

Your question reminds Flake how much he likes the verb glare (“to stare with a fiercely or angrily piercing look) and how much he hates the noun (“a very harsh, bright, dazzling light). Glare, the noun, is why polarized lenses exist. According to optical expert Liz DeFranco, of New York’s Interboro Institute, polarized lenses “eliminate most of the ‘bounce-back’ of sunshine off snow and ice. In other words, polarized lenses shanghai glare by filtering out reflections. Through a pair of polarized lenses, you’ll see much better on bright days as well as on days when glare is created by fog (which, in case you were wondering, is just glare busting off a billion tiny water molecules). So spend another $20 on your eyewear if you’re the type of person who eschews bothersome things like glare.