caa a22 4500 465777325 CHVBK 20180323111945.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF02764285 doi (NATIONALLICENCE)springer-10.1007/BF02764285 A comparison of three clinical methods of spatial contrast-sensitivity testing in normal subjects [Elektronische Daten] [Scott Tweten, Michael Wall, Barry Schwartz] Three methods clinically used for measuring spatial contrast sensitivity were performed monocularly in normal subjects to compare their sensitivity and applicability. The methods tested were (1) the Von Békésy tracking procedure, (2) the Method of Increasing Contrast, both carried out on a Nicolet CS-2000 automated Vision Tester, and (3) the Vistech Contrast Test System, a photographic test chart. The results show that the threshold sensitivities of the Von Békésy tracking procedure and the Method of Increasing Contrast were not significantly different. For sensitivity to middle and high spatial frequency, the Vistech test chart was found to approximate the Method of Increasing Contrast. With automated testing, a slower rate of contrast progression and a larger visual angle produced lower thresholds of detection of the contrast-sensitivity function. Using a slow rate of contrast progression, both the Vistech test chart and the Method of Increasing Contrast were rapidly conducted, easy to administer, and gave good approximations of the spatial contrast-sensitivity function. Springer-Verlag, 1990 Tweten Scott Department of Neurology and Psychiatry, Tulane University School of Medicine, 1415 Tulane Avenue, 70112, New Orleans, LA, USA aut Wall Michael Department of Ophthalmology, Tulane University School of Medicine, 1415 Tulane Avenue, 70112, New Orleans, LA, USA aut Schwartz Barry Department of Neurology and Psychiatry, Tulane University School of Medicine, 1415 Tulane Avenue, 70112, New Orleans, LA, USA aut Graefe's Archive for Clinical and Experimental Ophthalmology Springer-Verlag 228/1(1990-01-01), 24-27 0721-832X 228:1<24 1990 228 417 https://doi.org/10.1007/BF02764285 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02764285 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tweten Scott Department of Neurology and Psychiatry, Tulane University School of Medicine, 1415 Tulane Avenue, 70112, New Orleans, LA, USA aut NATIONALLICENCE 700 1- Wall Michael Department of Ophthalmology, Tulane University School of Medicine, 1415 Tulane Avenue, 70112, New Orleans, LA, USA aut NATIONALLICENCE 700 1- Schwartz Barry Department of Neurology and Psychiatry, Tulane University School of Medicine, 1415 Tulane Avenue, 70112, New Orleans, LA, USA aut NATIONALLICENCE 773 0- Graefe's Archive for Clinical and Experimental Ophthalmology Springer-Verlag 228/1(1990-01-01), 24-27 0721-832X 228:1<24 1990 228 417 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer