A COMPARISON OF TWO METHODS FOR MEASURING CONTRAST SENSITIVITY

Authors
  1. McFadden, S.M.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Contrast sensitivity of 51 Canadian Forces (CF) aircrew candidates was measured using the Vistech VCTS 6500 charts and a microprocessor controlled video-based system (a modified Optronics CS2000). The data were collected to compare the relative suitability of the two systems for the routine assessment of contrast sensitivity. A previous assessment with the video-based system had identified a requirement for a test system that was faster and simpler to administer and that provided more objective results. In the present evaluation, the charts provided a rapid and more objective measure of contrast sensitivity. However, with the charts, it was not possible to assess as wide a range of contrast sensitivities nor to provide as precise a measure of contrast sensitivity as with the video-based system.
Report Number
DCIEM-87-RR-51 — Research Report
Date of publication
15 Dec 1987
Number of Pages
19
DSTKIM No
88-01297
CANDIS No
54531
Format(s):
Microfiche filmed at DSIS;Originator's fiche received by DSIS;Hardcopy

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