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Related Experiment Video

Updated: Apr 15, 2026

Author Spotlight: Development of an Automated Camera-Based System for Real-Time Blast Overpressure Monitoring and TBI Risk Assessment in Military Training

Author Spotlight: Development of an Automated Camera-Based System for Real-Time Blast Overpressure Monitoring and TBI Risk Assessment in Military Training

Published on: December 6, 2024

Effectiveness of eye armor during blast loading.

Shantanu Bailoor¹, Rajneesh Bhardwaj², Thao D Nguyen³

¹Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, 400076, India.

Biomechanics and Modeling in Mechanobiology

|April 2, 2015

Summary

This summary is machine-generated.

Eye armor effectiveness against blast injuries was evaluated using a computational model. Goggles reduced initial blast pressure more than spectacles, but sustained elevated pressure, potentially harming the eye.

Keywords:

Blast loading Eye armor Fluid–structure interaction Military Combat Eye Protection (MCEP)Ocular trauma Primary blast injuries (PBI)

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Last Updated: Apr 15, 2026

Author Spotlight: Development of an Automated Camera-Based System for Real-Time Blast Overpressure Monitoring and TBI Risk Assessment in Military Training

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Published on: December 6, 2024

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Published on: May 24, 2024

Area of Science:

Ophthalmology
Military Medicine
Biomedical Engineering

Background:

Combat injuries frequently involve ocular trauma from improvised explosive devices.
Primary blast injuries (PBI) to the eye can cause significant visual impairment and may go unnoticed.
The protective efficacy of existing eye armor against blast overpressures (BOP) is not well understood.

Purpose of the Study:

To assess the effectiveness of eye armor (spectacles and goggles) in mitigating blast overpressures on the human eye.
To understand the fluid-structure interaction dynamics during ocular blast events.
To validate a computational model against experimental blast measurements.

Main Methods:

Development and application of a three-dimensional (3D) fluid-structure interaction computational model.
Simulation of blast loading on human eyes with and without eye armor.
Validation of model results against free-field blast measurements.

Main Results:

Blast waves focused on the ocular region due to facial reflections, increasing BOP.
Goggles were more effective than spectacles in mitigating BOP, reducing penetration and increasing clearance space.
Both spectacles and goggles reduced reflected BOP more at higher charge masses.
Goggles caused sustained elevated pressure loading on the eye, 50-100% higher than unprotected eyes after 0.2 ms.

Conclusions:

Computational modeling provides crucial insights into ocular blast injury mechanisms and eye armor effectiveness.
Goggles offer better initial protection but may lead to prolonged elevated pressure exposure.
Further research is needed to optimize eye armor design for comprehensive blast protection.