June 2017
Volume 58, Issue 8
Open Access
ARVO Annual Meeting Abstract  |   June 2017
The Use of a Full-Thickness Corneal Penetration Wound Model to Simulate Battlefield Ocular Trauma
Author Affiliations & Notes
  • Gregory A Hutcheson
    Ocular Trauma Division - US Army Institute for Surgical Research, UIW Rosenberg School of Optometry, San Antonio, Texas, United States
    Rosenberg School of Optometry, University of the Incarnate Word, San Antonio, Texas, United States
  • David O. Zamora
    Ocular Trauma Division - US Army Institute for Surgical Research, UIW Rosenberg School of Optometry, San Antonio, Texas, United States
  • Brian Lund
    Ocular Trauma Division - US Army Institute for Surgical Research, UIW Rosenberg School of Optometry, San Antonio, Texas, United States
  • Jeffery Cleland
    Ocular Trauma Division - US Army Institute for Surgical Research, UIW Rosenberg School of Optometry, San Antonio, Texas, United States
  • Jeff C Rabin
    Rosenberg School of Optometry, University of the Incarnate Word, San Antonio, Texas, United States
  • Footnotes
    Commercial Relationships   Gregory Hutcheson, None; David Zamora, None; Brian Lund, None; Jeffery Cleland, None; Jeff Rabin, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science June 2017, Vol.58, 168. doi:
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    • Get Citation

      Gregory A Hutcheson, David O. Zamora, Brian Lund, Jeffery Cleland, Jeff C Rabin; The Use of a Full-Thickness Corneal Penetration Wound Model to Simulate Battlefield Ocular Trauma
      . Invest. Ophthalmol. Vis. Sci. 2017;58(8):168.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : IED explosions and the shrapnel they generate is the primary source of penetrating ocular wounds incurred by warfighters in combat over the last 15 years. Such wounds are difficult to treat on the battlefield and repercussions of such wounds on other ocular structures and cells are unknown. The objective of this study was to develop a reproducible bench top eye puncture model that would accurately simulate penetrating ocular wounds commonly seen in our soldiers.

Methods : A prototype device was built using a Murphy 12 DC solenoid (E-Motion Inc.) and controlled using Lab View Software (National Instruments). Puncture rods of various gauges and shapes were attached to the solenoid drive shaft and used to simulate shrapnel-created full thickness puncture wounds. A high speed video capture system (nac MEMRECAM HX-4) was used to record and measure the acceleration, velocity and impact of the puncture head through Cooper Vision Biofinity soft contact lenses.

Results : The average acceleration of the puncture-head in our system was calculated at 12.6 m/s, while the average velocity was 1.44 m/s (n=3). Using the values of the mass of the puncture head-solenoid shaft device (0.157 kg) and average acceleration, the force on the solenoid shaft was calculated to be 1.98 N. As such, the average kinetic energy at impact was 0.16 Joules.

Conclusions : The solenoid penetrating eye injury model successfully simulated battlefield penetrating ocular injuries in a consistent and systematic manner. Using this puncture model system, we can begin to investigate how size, shape and depth of puncture wounds influences wound healing of the eye. Data generated by this study will assist in developing novel methods to seal such wounds on the battlefield.

This is an abstract that was submitted for the 2017 ARVO Annual Meeting, held in Baltimore, MD, May 7-11, 2017.

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