C4 RESPIRATOR FIELD OF VIEW STUDY. PART 2

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Authors
  1. Barkow, B.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN);Behavioural Team, Toronto ONT (CAN)
Abstract
The purpose of this contract was to investigate available technologies for testing restrictions to field of view, in the horizontal plane, while waring the Canadian Forces NBC (Nuclear, Biological, Chemical) C4 protective respirator. It was determined from an earlier investigation of C4 field of view that it was necessary to test filed of view restriction on human test subjects instead of mannequin or headform test devices. These approaches to human test subject testing were are covered in this report. These are: (1) the Kobrick/Natick apparatus, (2) MED Associates commercial turn key approach, and (3) clinical test equipment. For testing the full extent of field of view (free eye movement), it is recommended that a simple presence-absence methodology be used, in a light controlled room with a geometry permitting testintg up to + or - 135 degrees. Where more detailed examination of peripheral vision are required, such as in the presence of environmental stressors, it is recommended that hte Kobrick/Natick apparatus or clinical perimeter devices be used.
Keywords
Field of view;Peripheral vision
Report Number
DCIEM-97-CR-28 — Contractor Report (Final)
Date of publication
31 Mar 1997
Number of Pages
25
DSTKIM No
97-04463
CANDIS No
506677
Format(s):
Hardcopy;Document Image stored on Optical Disk

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