Besides protecting your eyes from wrinkles and harmful UV rays, sunglasses can transform your face, slenderizing a round face or softening a square jaw. So when shopping for shades, choose a pair with lenses that offer 99 to 100 percent UV protection, and consider these face-flattering tips:

If you have an oval face: You can wear just about any shape. Make sure the size of your frames works in proportion to your features. What's in? Updated aviators

If you have a round face: Look for styles that are narrow or angular in shape to lengthen the face and diminish fullness. What's in? Sparkly or embellished glasses

If you have a square face: Select curvilinear styles with more width than depth to soften the angles of the face. What's in? Wrap-around sunglasses

If you have an oblong face: To make the face appear shorter and more balanced, try frames that have top-to-bottom depth that add width to the face. What's in? Oversize squares

If you have a heart shape face: To minimize the width at the top of the face, pick frames that are slightly rounded and wider at the bottom. What's in? White! (or any neutral color, really)