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Orbital Volume Increases With Age: A Computed Tomography-Based Volumetric Study.

Shoaib Ugradar1, Val Lambros2

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Summary
This summary is machine-generated.

Female bony orbital volume significantly increases with age, while male orbital volume remains stable. These changes in females may contribute to the aging appearance.

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Area of Science:

  • Ophthalmology
  • Radiology
  • Gerontology

Background:

  • Aging affects facial structures, including the bony orbit.
  • Understanding age-related changes in orbital volume is crucial for aesthetic and reconstructive procedures.

Purpose of the Study:

  • To investigate age-related changes in bony orbital volume (BOV) in adult males and females.
  • To compare BOV between younger and older adult populations.

Main Methods:

  • A case-control study analyzed high-resolution CT scans from 120 patients (aged 18-30 and 60-75 years).
  • Bony orbital volume (BOV) was measured in both orbits of eligible participants, excluding those with relevant medical conditions or prior surgery.
  • Generalized estimating equations were used to account for the correlation between paired orbits.

Main Results:

  • A total of 240 orbits from 120 patients were analyzed.
  • Females aged 60-75 years exhibited a significantly larger mean BOV (20,939.38 mm³) compared to females aged 20-30 years (19,153.69 mm³), P=0.05.
  • Males showed no significant difference in mean BOV between age groups (20-30 years: 22,2721 mm³ vs. 60-75 years: 22,892.92 mm³, P=0.40).
  • Mean BOV was significantly greater in males than females across both age groups (P ≤ 0.01).

Conclusions:

  • Female bony orbital volume significantly increases with age.
  • Male bony orbital volume does not show significant age-related changes.
  • Orbital volume expansion in females may be a contributing factor to the visible signs of facial aging.