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Title: RECOVERY OF FOVEAL DARK ADAPTATION
Accession Number: 00219546
Record Type: Component
Abstract: A CONTINUING PROBLEM IN NIGHT DRIVING IS THE EFFECT OF GLARE SOURCES, AS ONCOMING HEADLIGHTS, ON THE VISUAL SENSITIVITY OF THE DRIVER. THIS STUDY WAS UNDERTAKEN TO DETERMINE THE EFFECT ON DARK ADAPTED FOVEAL ACUITY OF BRIEF, BRIGHT SOURCES OF LIGHT. ALL MEASURES WERE MADE WITH A HECHT-SHLAER ADAPTOMETER. A SERIES OF DARK ADAPTATION CURVES ARE PRESENTED. REGULAR FAMILIES OF CURVES WERE FOUND FOR EACH SUBJECT' THE INITIAL THRESHOLD AND THE TOTAL TIME TO READAPT VARIED SYSTEMATICALLY WITH THE INTENSITY AND DURATION OF THE ADAPTATION SOURCE. TWO OTHER QUESTIONS THAT WERE INVESTIGATED WERE THE SIZE OF THE ADAPTING FIELD, AND THE LENGTH OF EXPOSURE TIME BEYOND WHICH NO FURTHER EFFECTS WERE FOUND. VARIOUS PRODUCTS OF INTENSITY AND TIME OF THE GLARE SOURCES HAVE BEEN COMPARED.
Supplemental Notes: Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Monograph Title: Monograph Accession #: 01055083
Authors: Kinney, Jo Ann SConnors, Mary MPagination: pp 35-40
Publication Date: 1965
Serial: Media Type: Print
Features: Figures
(7)
; References
(13)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Highways; Safety and Human Factors
Files: TRIS, TRB
Created Date: Dec 12 1994 12:00AM
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