Measuring Ocular Counter Roll: THEIA Device

Nicholas G. Emord, Juan Aceros, David A. Zapala

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A novel prototype of a medical instrument for clinical diagnosis and research applications has been developed and tested. The device measures the ocular counter roll of an eyeball with a high level of precision using a mechanical measurement method (for head roll), and employs machine vision analysis to measure eye roll with respect to facial features. The prototype was 3D printed using an Objet 260 Polyjet 3D printer and tested in laboratory conditions.

Original languageEnglish (US)
Title of host publicationSoutheastcon 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538661338
StatePublished - Oct 1 2018
Event2018 IEEE Southeastcon, Southeastcon 2018 - St. Petersburg, United States
Duration: Apr 19 2018Apr 22 2018

Publication series

NameConference Proceedings - IEEE SOUTHEASTCON
ISSN (Print)0734-7502


Other2018 IEEE Southeastcon, Southeastcon 2018
Country/TerritoryUnited States
CitySt. Petersburg


  • 3D printing
  • Machine Vision
  • Magnetic Encoder
  • Medical Device
  • Ocular counter roll

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Software
  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Signal Processing


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