POLARIZED sports sunglasses reduce glare so athletes can see the ball or other players better. Anti-reflective (AR) coating is another glare reducer that works even at night, if you’re playing under bright lights.

Photochromic lenses are another way to control light. These lenses are clear indoors and change automatically to a medium or dark sunglass shade outdoors, depending on the intensity of sunlight.

The largest manufacturer of plastic photochromic lenses is Transitions Optical. Therefore, plastic photochromic lenses often are commonly referred to as “Transitions lenses.” Transitions lenses also are available in polycarbonate, which is lighter and more impact-resistant than plastic, making it the most popular lens material for sports eyewear.

Photochromic lenses are terrific for golf, where you move frequently from bright sunlight to shade during the course of a round. But they also work great for any outdoor sport on days when it’s partly sunny, partly cloudy. For the ultimate light-control lenses, many opticians recommend adding anti-reflective coating to photochromic lenses to eliminate glare from the “bounce-back” of light from the back surface of the lenses.

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