Measurements of orbital volume using cone-beam computed tomography in eye movement abnormalities

Erika Maka, Olga Lukats, Tamas Vizkelety, Zsolt Markella, Maria Kis, Janos Nemeth, Jozsef Barabas

Research output: Contribution to journalArticle

Abstract

Purpose: To measure the orbital volume in adult patients with unilateral eye movement abnormalities originating in childhood. Methods: Cone-beam computed tomography was performed in 2 patients with eye movement abnormalities. A 28-year-old woman was treated because of right divergent squint originating at 8 years of age after penetrating corneal trauma. A 38-year-old man was examined because of abnormal head posture caused by left superior oblique underaction originating at 6 years of age. Orbital scans were analyzed with Cranioviewer 3D craniofacial cephalometric program. We measured bony orbital area in 6 slices (in ventro-dorsal direction per 4.8 mm) in every orbit on coronal scans. Results: The volume was more in the orbit with unilateral divergent squint and less in the orbit with unilateral superior oblique underaction compared to the contralateral orbital volume measurements. Conclusions: Cranioviewer 3D craniofacial cephalometric program is suitable for volumetric analysis of the bony orbit on cone-beam computed tomography files. The development of the orbit can be influenced by extraocular muscle movements.

Original languageEnglish
Pages (from-to)101-106
Number of pages6
JournalEuropean Journal of Ophthalmology
Volume24
Issue number1
DOIs
Publication statusPublished - May 3 2013

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Keywords

  • Cone-beam CT
  • Orbital development
  • Strabismus

ASJC Scopus subject areas

  • Ophthalmology

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