jessica biel square face round lends

Sunglasses: Devon Jarvis/Studio D

4 of 6
Square Face: Round Lens

Again, opposite shapes attract. Frames aside, dark lenses aren't always safe—they still need UV protection, says the Vision Council's Dora Adamopoulos, OD.

SEE, $99;

Jessica Biel: GVK/Bauer-Griffin/GC Images