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Reviewed July 13, 2026
What is intercanthal width?
Intercanthal width is the gap between the inner corners of your two eyes, the points where the upper and lower lids meet next to the nose. Clinicians call it the intercanthal distance, and it is the soft-tissue measure that actually decides whether eyes read as close set or wide set. When that gap runs unusually wide it is called telecanthus. It sits at the centre of the face, so even a few millimetres shift how balanced everything around the eyes looks.
How It's Measured
How is intercanthal width measured?
Intercanthal width is the straight-line distance between the two medial canthi, the inner eye corners, taken on a front-facing photo with the eyes relaxed and looking ahead. Because it reads soft tissue rather than the underlying bone, it is the number clinicians reach for first when they want to describe eye spacing (Naini, 2011).
- Medial canthi: the two inner eye corners the line connects, which is why a steady forward gaze matters when the photo is taken.
- Not the same as pupil distance: interpupillary distance is measured pupil to pupil; intercanthal width is the soft-tissue inner-corner gap, and the two do not always move together.
- The rule of fifths: split the face into five equal vertical columns and the gap between the eyes should fill about one fifth, roughly one eye width.
Read against the rest of the face, the intercanthal width tells you whether the eyes sit balanced, wide, or close. A gap much wider than one eye width starts to read as telecanthus; much narrower reads as close set eyes (Thappa, 2023).
Why It Matters
Why does intercanthal width matter?
Eye spacing is one of the first things we register on a face, and the intercanthal width is what sets it. We tend to read average, balanced layouts as attractive, and a face looks most harmonious when the eyes sit near that one-eye-width spacing rather than pushed wide or squeezed close (Pallett et al., 2010). Shift the inner corners far enough in either direction and the whole midface starts to feel off, even when nothing else has changed.
The clinical names carry real weight here. A wide intercanthal distance with normally spaced orbits is telecanthus; a genuine increase in the distance between the bony orbits is hypertelorism (Naini, 2011). Marked hypertelorism can flag an underlying craniofacial condition, so a very wide gap is measured properly in a clinical assessment rather than judged by eye.
There is no single correct number, though. The intercanthal width also anchors an old proportional rule, the orbitonasal canon, which holds that the nose should be about as wide as the gap between the inner eye corners, a relationship that rarely holds exactly outside idealised drawings (Thappa, 2023). Ancestry shifts the baseline too, so a gap that reads as wide on one face can sit comfortably inside the norm on another. The cards and table below give working ranges, not a verdict.
31–35 mm
Men
30–34 mm
Women
30–35 mm
Typical Range
Approximate adult intercanthal width. Eye spacing is judged proportionally and varies with individual facial structure and background.
Demographic Variants
Ideal Intercanthal Width by Demographic
Ideal intercanthal width shifts by sex and ancestry, so eye spacing is read against the face it sits on, not against one fixed number. Each row links to the source.
Population | Intercanthal tendency | Source |
|---|---|---|
Men (adult) | Slightly wider inner-corner gap, near 33 mm on average | |
Women (adult) | A little narrower on average, near 32 mm | |
European reference | The classic rule-of-fifths layout used as the historical baseline | |
African populations | Intercanthal distance often close to North American White norms despite other facial differences | |
Serbian young adults | Mean inner-canthal distance measured near 37 mm, showing how population samples vary |
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Your Questions
Frequently Asked Questions
In adults the intercanthal distance usually sits around 30 to 35 mm, with men a millimetre or two wider than women on average. Normal is defined as a range rather than a single value, so a gap anywhere inside that band counts as normal eye spacing (Naini, 2011). Population samples do vary, and some report means closer to 37 mm (Knezevic et al., 2020).
Telecanthus is a wide intercanthal distance, the inner eye corners sitting too far apart, while the bony orbits themselves are spaced normally. Hypertelorism is a true increase in the distance between the bony orbits, so the whole eye position is shifted (Naini, 2011). The distinction matters because marked hypertelorism can accompany a craniofacial condition and is assessed clinically.
A wide intercanthal width is mostly down to the underlying bone, the width of the midface the eyes sit in, so the trait is largely inherited. A true increase in the distance between the bony orbits, hypertelorism, can also appear alongside certain craniofacial syndromes, which is why a very wide gap is measured properly rather than treated as cosmetic alone (Naini, 2011).
Mildly wide set eyes can read as striking and are common among models, but a face still tends to look most balanced when the intercanthal width sits near the rule-of-fifths ideal of about one eye width between the eyes. Attractiveness tracks with average, symmetric layouts, so spacing close to that norm usually reads best (Pallett et al., 2010). Pushed far past it, wide set eyes begin to read as telecanthus.