The distance expressed in eye widths from the midline of the face to the inner canthus of the eye is equal to how many eye widths?

• A. One
• B. One Half
• C. Two
• D. Three Quarters

Answer: (B)

In facial proportion, eye widths are used as a shorthand for measurements across the face. The face is typically about five eye widths across, with the midline located roughly between the two eyes. The inner corner of each eye sits just outward from the nose, so the space from that midline to the inner canthus is a small offset. That offset is about half an eye width, meaning the distance from the midline to the inner canthus is roughly one-half of an eye width. This half-eye-width spacing helps keep the eyes balanced and the overall symmetry of the face. So the distance expressed in eye widths from the midline to the inner canthus is about one half of an eye width. (Individual variation can occur, but this is the standard guideline.)