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首页> 美国政府科技报告 >Evaluation of Contender Helmets for Visual Obstruction and Preliminary Validationof a Visual Obstruction Measuring Tool
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Evaluation of Contender Helmets for Visual Obstruction and Preliminary Validationof a Visual Obstruction Measuring Tool

机译：用于视觉障碍的竞争者头盔的评估和视觉障碍测量工具的初步验证

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The aim of this study was to (1) use a headform perimeter to evaluate contenderarmy helmets for visual interference; and (2) determine the effectiveness and validity of using the headform perimeter to measure visual interference compared to using human subjects. A headform was made in-house to be used with a standard Goldmann perimeter. The head form perimeter was used to evaluate the six contender helmets for visual obstructions, by measuring loss of field of view (FOV). In a separate study, human subjects FOV measurements were obtained with the same Goldmann perimeter. Subjects' loss of FOV while wearing various helmets were measured. The results showed that: (1) all brimmed helmets caused significant reductions of FOV when compared with baseline measurements (no helmet); (2) brimless helmets (British and Israeli) did not cause any significant reduction of FOV; and (3) the headform FOV data were consistent with subjects' FOV measurements, for three of the six test helmets.

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