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Normal exophthalmometric values in children.

P Nucci1, R Brancato, F Bandello

  • 1Department of Ophthalmology, University of Milano, Italy.

American Journal of Ophthalmology
|November 15, 1989
PubMed
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This study establishes normal ocular protrusion ranges in children aged 3-10 using a Hertel exophthalmometer. Findings show no significant differences between sexes or eyes, providing crucial baseline data for pediatric eye assessments.

Area of Science:

  • Ophthalmology
  • Pediatric Medicine
  • Anthropometry

Background:

  • Establishing normative data for ocular parameters is essential for diagnosing conditions like proptosis.
  • Previous studies may lack comprehensive data for specific pediatric age groups.

Purpose of the Study:

  • To determine normal exophthalmometric values and outer orbital margin distances in healthy children aged 3 to 10 years.
  • To establish percentile distribution curves for these measurements.

Main Methods:

  • A Hertel exophthalmometer was used to measure ocular protrusion in 852 healthy children (ages 3-10).
  • Exclusion criteria included orbital trauma, endocrine disease, severe myopia, buphthalmos, and craniofacial deformities.
  • Measurements included exophthalmometry and outer orbital margin distance; data were analyzed for age and sex differences.

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Main Results:

  • Mean ocular protrusion values ranged from 9.11 mm (3-year-olds) to 11.67 mm (10-year-olds).
  • Mean outer orbital margin distance ranged from 78.7 mm (3-year-olds) to 89.1 mm (10-year-olds).
  • No statistically significant differences were found between sexes or between right and left eyes; asymmetry was minimal (≤2 mm).

Conclusions:

  • This study provides normative exophthalmometric data for healthy children aged 3-10.
  • The established ranges and percentile curves can aid in the clinical assessment of pediatric eye conditions.
  • Minimal asymmetry between eyes is a characteristic of normal ocular protrusion in this age group.