NON POLARIZED AND POLARIZED BOTH ARE GOOD FOR EYES IF YOU WANT DARKNESS THEN NORMAL UV PROTECTION IS OK BUT IF U WANT NATURAL VISION THEN THIS IS THE BEST OPTION IN SUNGLASSES, U CAN FEEL DIFFERENT IN SOME CONDITION LIKE WHEN U DRIVE OR WHEN U ARE IN SEA FACE AREA OR IN SNOW COUNTRY’S THEIR U FEEL THE REAL DIFFERENCE BECAUSE IN THIS PLACE U WILL BE FINDING MORE HORIZONTAL GLARE EFFECT