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Related Experiment Video

Updated: May 9, 2026

Eye Tracking During A Complex Aviation Task For Insights Into Information Processing
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Published on: April 4, 2025

Military aircrew eyewear survey: operational issues.

José E Capó-Aponte1, David J Hilber, Thomas G Urosevich

  • 1U.S. Army Aeromedical Research Laboratory, Fort Rucker, AL, USA. jose.e.capoaponte.mil@mail.mil

Aviation, Space, and Environmental Medicine
|August 10, 2013
PubMed
Summary

Current U.S. Army aircrew eyewear presents significant operational deficiencies, including discomfort and restricted fields of view, impacting mission readiness. Improved, aviation-compatible protective eyewear is urgently needed for aircrew safety and performance.

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Area of Science:

  • Military Aviation
  • Ophthalmology
  • Human Factors Engineering

Background:

  • U.S. Army aircrew operate in demanding environments requiring specialized protective eyewear.
  • Current U.S. Army-issue aircrew eyewear may have mission-related operational issues.

Purpose of the Study:

  • To assess operational issues and mission needs related to current U.S. Army aircrew eyewear.
  • To identify deficiencies in existing aircrew spectacles and determine aircrew desires for improved eye protection.

Main Methods:

  • An anonymous online survey was distributed to 976 U.S. Army aircrew personnel.
  • Data collected focused on operational problems, comfort, field of view, and compatibility with flight systems.

Main Results:

  • Nearly 50% of aircrew reported dissatisfaction with the HGU-4/P Aviator spectacles due to discomfort and fit.
  • Restricted field of view (FOV) in HGU-4/P and Modified HGU-4/P Apache spectacles adversely affected performance for 16% and 79% respectively.
  • 46% experienced eye discomfort from wind and dust; over 82% desired improved spectacles and 73% aviation-compatible protective eyewear.

Conclusions:

  • The HGU-4/P Aviator and Modified HGU-4/P Apache spectacles exhibit significant operational deficiencies and compatibility issues.
  • These deficiencies lead to poor wear compliance and unauthorized modifications, creating safety and readiness concerns.
  • There is a clear need for military combat eye protection specifically designed for compatibility with flight systems.