Open AccessTuebingenCSTest – a useful method to assess the contrast sensitivity function
Author(s) -
Tim Schilling,
Arne Ohlendorf,
Alexander Leube,
Siegfried Wahl
Publication year - 2017
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.8.001477
Subject(s) - repeatability , computer science , contrast (vision) , reliability (semiconductor) , sensitivity (control systems) , artificial intelligence , mathematics , statistics , physics , electronic engineering , power (physics) , quantum mechanics , engineering
Since contrast sensitivity (CS) relies on the accuracy of stimulus presentation, the reliability of the psychophysical procedure and observer's attention, the measurement of the CS-function is critical and therefore, a useful threshold contrast measurement was developed. The Tuebingen Contrast Sensitivity Test (TueCST) includes an adaptive staircase procedure and a 16-bit gray-level resolution. In order to validate the CS measurements with the TueCST, measurements were compared with existing tests by inter-test repeatability, test-retest reliability and time. The novel design enables an accurate presentation of the spatial frequency and higher precision, inter-test repeatability and test-retest reliability compared to other existing tests.