Glossary
What is intercanthal distance?
Last updated: May 22, 2026
Intercanthal distance is the distance between the medial canthi (inner corners) of the two eyes. The classical proportion holds that intercanthal distance approximately equals the width of one eye. Significantly wider intercanthal distance is called hypertelorism; significantly narrower is called hypotelorism. Both can be cosmetic or medical concerns depending on the degree.
How intercanthal distance is measured
Measured in millimeters from the right medial canthus to the left medial canthus. IPD calibration anchors the measurement to a known scale. Typical normal adult range is 28 to 36 mm.
Why intercanthal distance matters
Intercanthal distance affects the perceived width of the eyes and the upper face. Hypertelorism (often associated with certain craniofacial syndromes) can be corrected surgically in extreme cases. Cosmetic adjustment is generally limited to makeup techniques.
Normal range
Typical adult range: 28 to 36 mm. Below 28 mm: hypotelorism. Above 36 mm: hypertelorism. Some ethnic variation exists.
Source: Standard cephalometric references
How Facet uses intercanthal distance
Facet defers explicit intercanthal distance measurement to V3 pending additional eye-module CV passes.
Frequently asked
Is wide-set or close-set eyes more attractive?+
Neither extreme is rated more attractive. The aesthetic ideal is the proportional 'one-eye-width' interocular distance. Deviations in either direction are equally noted in proportion analysis.
Can intercanthal distance be changed cosmetically?+
Surgical correction (medial canthopexy or specialized craniofacial procedures) exists for extreme cases. Cosmetic adjustment is generally limited to makeup techniques that visually narrow or widen the perceived gap.