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Title: DARK ADAPTATION THRESHOLD, RATE, AND INDIVIDUAL PREDICTION
Accession Number: 00220220
Record Type: Component
Abstract: A STUDY IS MADE OF THE RELATIONSHIP BETWEEN DARK ADAPTATION AND AGE. TO DESCRIBE ONE FAMILY OF DARK ADAPTATION CURVES FROM AN AGE SAMPLE OF 240 MEN, RANGING FROM 16 THROUGH 89 YEARS, A MATHEMATICAL MODEL WAS DERIVED. IT WAS DETERMINED THAT AGE IS HIGHLY CORRELATED WITH ALL DARK ADAPTATION THRESHOLDS WHICH IN TURN ARE HIGHLY INTERCORRELATED. THE CORRELATION BETWEEN AGE AND DARK ADAPTATION THRESHOLDS TENDS TO INCREASE AS TIME IN THE DARK INCREASES. CONE AND ROD THRESHOLDS ARE HIGHLY CORRELATED, AND THE REDUCTION IN THE THRESHOLD AND RATE OF DARK ADAPTATION IN RELATION TO AGE IS VERY MARKED. IT WAS ALSO DEMONSTRATED THAT A SHORT CLINICAL TEST OF DARK ADAPTATION WAS ENTIRELY POSSIBLE BECAUSE THRESHOLDS OBTAINED DURING THE FIRST FEW MINUTES OF ADAPTATION PREDICTED DARK ADAPTATION SENSITIVITY REMOTE IN TIME.
Supplemental Notes: No 298, pp 3-17, 6 FIG, 8 TAB, 33 REF. 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 #: 01410681
Authors: Domey, Richard GMcFarland, Ross APagination: 15p
Publication Date: 1961
Serial: Conference:
40th Annual Meeting of the Highway Research Board
Location:
Washington DC, United States Media Type: Digital/other
TRT Terms: Subject Areas: Highways; Safety and Human Factors
Files: TRIS, TRB
Created Date: Aug 19 1994 12:00AM
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