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Considerations in Contact Lens Use Under Adverse Conditions Proceedings of a Symposium (1991) / Chapter Skim
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An Overview of U.S. Army Aviation and Contact Lens Issues
Pages 142-147

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From page 142...
... The results are in the process of being published, so only a brief summary will be supplied here. PRELIMINARY STUDY In order to develop relative safety patterns in established rotary-wing systems, an initial feasibility study of contact lens wear involved volunteer ametropic aviators qualified in the UH-1H Iroquois utility helicopter and/or AH-1 Cobra attack helicopter.
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From page 143...
... In summary, this initial feasibility study demonstrated the safe use, both in medical and flight terms, of extended-wear contact lenses by AH-1 and UH1 pilots. DRIVING FORCE Immediate interest is being directed at the AH-64 Apache attack helicopter (Figure 1~.
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From page 144...
... NOTE: The AH-64 Apache attack helicopter represents the utmost in modern air weaponry. The two-man airframe system is designed to fly in literally any weather conditions.
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From page 145...
... NOTE: The M-48 protective mask was designed specifically for the Apache system, since the preexisting M-24 protective mask was totally incompatible with HDU positioning. some difficulty in obtaining correct placement of the system.
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From page 146...
... NOTE: The M-43 protective mask does not offer an easy means of correcting refractive error; two possible options are glue-on optics and contact lens wear. Each option has its own set of advantages and disadvantages.
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From page 147...
... Visual complications induced by such a revision include image magnification and distortion. In addition, the peripheral HDU symbology is obscured because of a decreased field of view that stems from the increased physical distance imposed on imager placement (Figure 4~.
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Key Terms

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  • spectacle wear
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  • initial contact
  • aviators merely
  • chemical contaminants
  • volunteer aviators

  • flight instrument
  • individual acuities
  • lens materials
  • wear constitutes
  • prohibits contact

  • instrument flight
  • imager placement
  • goggles flight
  • vision goggles
  • frame spectacle

  • decreased field
  • advocating contact
  • aircraft strictly
  • utility helicopter
  • viable option


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