Berkeley Discs Contrast Sensitivity Test
Designed by Dr. Ian Bailey of the University of California, Berkeley, School of Optometry. This test of contrast sensitivity has three double-sided cards. On each of the six sides, there is a 6-cell grid of 80 mm squares. On each of the sides, three of the 6 cells contain large (50mm) discs of different contrasts.
$345.00
Description
Designed by Dr. Ian Bailey of the University of California, Berkeley, School of Optometry. This test of contrast sensitivity has three double-sided cards. On each of the six sides, there is a 6-cell grid of 80 mm squares. On each of the sides, three of the 6 cells contain large (50mm) discs of different contrasts.
Each Card contains 6 Discs of varying individual contrast levels. The contrast sensitivity values are expressed in log units of contrast sensitivity using the Weber contrast ratio. See instructions below for further details.
