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Normative data for interorbital distance in a paediatric Caucasian population

Mathilde Pech de Laclause1, Baptiste Morel2, Boris Laure1

  • 1Department of Paediatric Maxillofacial Surgery and Craniofacial Surgery, Reference Center for Rare Craniofacial Malformations, Clocheville Hospital, Tours University Hospital, Tours, France.

Surgical and Radiologic Anatomy : SRA
|February 27, 2026
PubMed

Insights

This study establishes normative orbital growth data for Caucasian children, revealing key periods of accelerated development. Understanding these patterns is crucial for identifying craniofacial abnormalities.

Area of Science:

  • Craniofacial development
  • Pediatric radiology
  • Anthropometry

Background:

  • Orbital growth is vital in craniofacial development, with abnormalities often impacting this process.
  • Establishing normative orbital growth data is essential for differentiating normal from pathological development.
  • Limited normative data exists for Caucasian pediatric populations.

Purpose of the Study:

  • To determine the interorbital distance in a healthy Caucasian pediatric population.
  • To provide normative data for orbital measurements in children.

Main Methods:

  • Retrospective analysis of 466 craniofacial CT scans from Caucasian children aged 3 months to 10 years.
  • Measurements included bony inner interorbital distance (IOD) and bony lateral orbital distance (LOD) at the neuro-ocular plane.
  • Statistical analysis using the Mann-Whitney test to compare age and sex groups.

Main Results:

  • Mean IOD increased from 18.76 mm at 3 months to 22.79 mm at 10 years.
  • Significant increases in IOD and LOD occurred during the first two years and between ages 7-8.
  • The IOD/LOD ratio remained constant, indicating isometric orbital growth.

Conclusions:

  • The study provides essential normative orbital measurement data for Caucasian children.
  • Two critical periods of accelerated orbital growth were identified.
  • This data aids in the clinical assessment of craniofacial development and potential abnormalities.
Abstract

Keywords:
CT-scansCaucasianInterorbital distanceorbital growthpaediatric population

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