Round
A round face has curvilinear lines with the width and
length in the same proportions and no angles. To make the face appear
thinner and longer, try angular narrow eyeglass frames to lengthen the
face, a clear bridge that widens the eyes
and frames that are wider than they are deep, such as a rectangular
shape.
Oval
The oval face is considered to be the ideal shape
because of its balanced proportions. To keep the oval’s natural balance,
look for eyeglass frames that are as wide as (or wider than) the broadest
part of the face, or walnut-shaped frames that are not too deep or too
narrow.
Oblong
The oblong face is longer than it is wide and has a
long straight cheek line and sometimes a longer nose. To make the face
appear shorter and more balanced, try frames that have a top-to-bottom
depth, decorative or contrasting temples that add width to the face, or a
low bridge to shorten the nose.
Base-Down Triangle
The triangular face has a narrow forehead
that widens at the cheek and chin areas. To add width and emphasize the
narrow upper third of the face, try frames that are heavily accented with
color and detailing on the top half or cat-eye shapes.
Base-Up Triangle
This face has a very wide top third and
small bottom third. To minimize the width of the top of the face, try
frames that are wider at the bottom, very light colors and materials, and
rimless frame styles (which have a light, airy effect because the lenses
are simply held in place to the temples by a few screws).
Diamond
Diamond-shaped faces are narrow at the eye line and
jawline, and cheekbones are often high and dramatic. This is the rarest
face shape. To highlight the eyes and bring out the cheekbones, try frames
that have detailing or distinctive brow lines, or try rimless frames or
oval and cat-eye shapes.
Square
A square face has a strong jaw line and a broad
forehead, plus the width and length are in the same proportions. To make
the square face look longer and soften the angles, try narrow frame styles
to soften the face angles, frames that have more width than depth, and
narrow ovals.