A square face is often characterized by a strong jaw line, a broad forehead, and a wide chin and cheekbones. The width and length of the face are close to being equal. Frames should be selected to make the face look longer and to soften the square angles of the face. Choose frames that are slightly curved (like an oval shape) and that have more horizontal than vertical real estate.
The oval face is identifiable by its balanced proportions. The forehead is slightly wider than the chin and cheekbones are high. Frames should complement the natural proportions of the oval. Choose frames that are wide or wider than the broadest part of the face and that follow your brow line. Often, diamond or rectangular shapes work best for oval shapes.